content stringlengths 86 994k | meta stringlengths 288 619 |
|---|---|
Got Homework?
Connect with other students for help. It's a free community.
• across
MIT Grad Student
Online now
• laura*
Helped 1,000 students
Online now
• Hero
College Math Guru
Online now
Here's the question you clicked on:
Given the expression 3sin(2x-pi), how would I go about determi... | {"url":"http://openstudy.com/updates/4eeff08ae4b0367162f64784","timestamp":"2014-04-19T02:26:30Z","content_type":null,"content_length":"47293","record_id":"<urn:uuid:6de939a0-1b0e-4092-baee-d445cbee7b53>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00429-ip-10-147-4-33.ec2.internal.w... |
Efficient Hashing with Lookups in Two Memory Accesses
Results 1 - 10 of 13
- 14th Annual European Symposium on Algorithms, LNCS 4168 , 2006
"... Abstract. A counting Bloom filter (CBF) generalizes a Bloom filter data structure so as to allow membership queries on a set that can be changing dynamically via insertions an... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=4666912","timestamp":"2014-04-21T07:45:47Z","content_type":null,"content_length":"38909","record_id":"<urn:uuid:61cf1920-a773-4f4e-802d-8e01c92a722f>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00529-ip-10-147-4-33.ec2.internal.wa... |
Computing power leads to new insights
In his 1989 book "The Emperor's New Mind", Roger Penrose commented on the limitations on human knowledge with a striking example: He conjectured that we would most likely never know whether a string
of 10 consecutive 7s appears in the digital expansion of the number pi. Just 8 year... | {"url":"http://machineslikeus.com/news/computing-power-leads-new-insights","timestamp":"2014-04-20T13:59:22Z","content_type":null,"content_length":"32961","record_id":"<urn:uuid:9037ade3-05ff-45fe-ab83-6263474330b4>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00361-ip-10-147-4-33.ec... |
Call for Bayesian case studies
January 7, 2013
By Allen Downey
(This article was originally published at Probably Overthinking It, and syndicated at StatsBlogs.)
It's been a while since the last post because I have been hard at work on
Think Bayes
. As always, I have been posting drafts as I go along, so you can read t... | {"url":"http://www.statsblogs.com/2013/01/07/call-for-bayesian-case-studies/","timestamp":"2014-04-20T20:56:29Z","content_type":null,"content_length":"35842","record_id":"<urn:uuid:3da0f5dd-84ff-45d9-8a4e-a27416a807b5>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00074-ip-10-147-4-3... |
Vedic Mathematics
Vedic Mathematics
One of the foremost exponents of Vedic mathematics, the late Bharati Krishna Tirtha Maharaja, author of Vedic Mathematics, has offered a glimpse into the sophistication of Vedic mathematics. Drawing
from the Atharva-veda, Tirtha Maharaja points to many sutras (codes) or aphorisms wh... | {"url":"http://archives.amritapuri.org/bharat/vedicmath.php","timestamp":"2014-04-18T19:00:56Z","content_type":null,"content_length":"21747","record_id":"<urn:uuid:2e488ce2-7bd1-4188-9923-ed4b94a1a916>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00565-ip-10-147-4-33.ec2.internal.war... |
Maximizing Profit price
November 24th 2010, 07:42 PM #1
Junior Member
Sep 2010
Maximizing Profit price
Hey guys, I got the first part done and most of the second part, but could someone check over my answers for the part after the YOU ARE CORRECT sign.
Also how do i solve the profit maximizing price (the la... | {"url":"http://mathhelpforum.com/calculus/164325-maximizing-profit-price.html","timestamp":"2014-04-16T07:45:06Z","content_type":null,"content_length":"30903","record_id":"<urn:uuid:83ab8681-36c7-40da-a2b4-658ab9f384f3>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00211-ip-10-147-4-... |
Exponents - Simplifying
Simplify: Note: \uparrow means "to the power of" (2xy\uparrow 3)\uparrow 2 (xy)\uparrow 3
Is it this: $(2xy^{3})^{2}(xy)^{3}?$ If so, what have you tried so far?
Yes it is that. I have tried distributing the 2 to 2x and y. Then distributing the 3 to the x and the y. Which got me this: (2x{2} y{5... | {"url":"http://mathhelpforum.com/algebra/180119-exponents-simplifying-print.html","timestamp":"2014-04-20T18:50:28Z","content_type":null,"content_length":"5774","record_id":"<urn:uuid:a9ed4499-e456-464a-9156-fa9a67a8095d>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00306-ip-10-147-... |
Engineering an External Memory Minimum Spanning Tree Algorithm
- In: Proc. of ESA 2005. Volume 3669 of LNCS , 2005
"... for processing huge data sets that can fit only on hard disks. It supports parallel disks, overlapping between disk I/O and computation and it is the first I/O-efficient algorithm library that
support... | {"url":"http://citeseerx.ist.psu.edu/showciting?doi=10.1.1.85.7721","timestamp":"2014-04-17T15:38:09Z","content_type":null,"content_length":"29080","record_id":"<urn:uuid:59b4898b-693e-45e1-949d-e91d1025a71f>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00294-ip-10-147-4-33.ec2.inter... |
The angular velocity associated with the optical flow field arising from motion through a rigid environment
Results 1 - 10 of 13
- International Journal of Computer Vision , 1995
"... In this paper we analyze in some detail the geometry of a pair of cameras, i.e. a stereo rig. Contrarily to what has been done in the pa... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1750488","timestamp":"2014-04-17T07:36:47Z","content_type":null,"content_length":"38293","record_id":"<urn:uuid:24c46bce-b411-4e83-aa3e-5e4db2ced6a5>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00252-ip-10-147-4-33.ec2.internal.wa... |
Moved to homework area sorry.-kiyoshi7
Study Triangle Similarity and study Supplementary Angles, from the standard high school Geometry course. The triangle problem with the single square relies on supplementary angles where the upper
right and left square vertices meet two sides of the larger triangle. You can conclud... | {"url":"http://www.physicsforums.com/showthread.php?s=4b5fd51f23c0e3810a99c1767e66a3f3&p=4486439","timestamp":"2014-04-19T12:40:13Z","content_type":null,"content_length":"26687","record_id":"<urn:uuid:c8b4ee2d-a3ae-4812-ac48-d848d816ef56>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217... |
Mr. Bigler's M
Physics I is a course designed for high school students in grades 11 & 12. Topics studied include motion, forces, momentum, energy, heat, electricity & magnetism, waves & optics, fluid mechanics, and
atomic & particle physics. The course requires that students be comfortable describing and solving real-w... | {"url":"http://www.mrbigler.com/moodle/","timestamp":"2014-04-19T04:19:57Z","content_type":null,"content_length":"34773","record_id":"<urn:uuid:768cc31c-21c2-4027-a5f4-0b9b2347347e>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00457-ip-10-147-4-33.ec2.internal.warc.gz"} |
Thinking Mathematically by Robert Blitzer
Chapter 11:
Counting Methods and
Probability Theory
Section 1:
The Fundamental Counting
The Fundamental Counting Principle
If you can choose one item from a group of
M items and a second item from a group of
N items, then the total number of two-item
choic... | {"url":"http://www.docstoc.com/docs/108207408/Thinking-Mathematically-by-Robert-Blitzer","timestamp":"2014-04-23T08:25:52Z","content_type":null,"content_length":"74631","record_id":"<urn:uuid:d8f5f470-4afd-43dc-934c-8c9f839eebf0>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00218-ip... |
Command >>> CAUCHY
Manual Page for Command >>> CAUCHY
>>> CAUCHY
Parent Command
>> OPTION
This command selects an objective function that corresponds to a Cauchy or Lorentzian distribution, i.e., the probability density function of the re... | {"url":"http://esd.lbl.gov/iTOUGH2/Command/CAUCHY_3.HTML","timestamp":"2014-04-18T19:22:29Z","content_type":null,"content_length":"2713","record_id":"<urn:uuid:70375365-b5dd-471e-a424-c288fb12cddf>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00411-ip-10-147-4-33.ec2.internal.warc.gz... |
Generating plane tilings with diagrams
I’ve finally set up a diagrams-contrib package to serve as a home for user contributions to the diagrams project—generation of specialized diagrams, fun or instructive examples, half-baked ideas,
stuff which is not sufficiently polished or general to go in the diagrams-lib package... | {"url":"http://byorgey.wordpress.com/2011/11/12/generating-plane-tilings-with-diagrams/","timestamp":"2014-04-17T18:41:50Z","content_type":null,"content_length":"71444","record_id":"<urn:uuid:637ab43b-d0f2-468c-a3c5-4f7534bccad0>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00010-ip... |
Faith and Quantum Theory by Stephen M. Barr | First ThingsFaith and Quantum Theory by Stephen M. Barr | Articles | First Things
Quantum theory is unsettling. Nobel laureate Richard Feynman admitted that it appears peculiar and mysterious to everyone-both to the novice and to the experienced physicist. Niels Bohr, one... | {"url":"http://www.firstthings.com/article/2007/02/faith-and-quantum-theory","timestamp":"2014-04-19T17:10:27Z","content_type":null,"content_length":"42487","record_id":"<urn:uuid:6ded0d20-8402-4598-968a-a32accc19bbe>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00155-ip-10-147-4-33... |
The Descend project is now officially reactivated and yesterday I committed the current version of the prototype into SVN repository. The UI is very basic, but it does its job of drawing a 3D surface
based on mathematical equations. So far it consist of three important parts:
• A compiler and interpreter of Misc, a p... | {"url":"http://www.mimec.org/taxonomy/term/34","timestamp":"2014-04-20T20:55:16Z","content_type":null,"content_length":"16886","record_id":"<urn:uuid:1ea6e8a3-09f5-481f-bf5e-45da6fd091b6>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00352-ip-10-147-4-33.ec2.internal.warc.gz"} |
Cost-minimising strategies for data labelling: optimal stopping and active learning
Christos Dimitrakakis and Christian Savu-Krohn
In: Fifth International Symposium on Foundations of Information and Knowledge Systems, 11-15 Feb 2008, Pisa, Italy.
Supervised learning deals with the inference of a distribution over an ou... | {"url":"http://eprints.pascal-network.org/archive/00003090/","timestamp":"2014-04-21T02:02:05Z","content_type":null,"content_length":"8248","record_id":"<urn:uuid:c196c3e2-1df5-4c92-a7ad-a556f8ad7c18>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00198-ip-10-147-4-33.ec2.internal.war... |
Assignment of Keyfitzed Conditional Probabilities for the Trial Urban
Table of Contents | Search Technical Documentation | References
Assignment of Keyfitzed Conditional Probabilities for the Trial Urban District Assessment School Sample
Conditional probabilities were assigned to control overlap between samples while ... | {"url":"http://nces.ed.gov/nationsreportcard/tdw/sample_design/2002_2003/sampdsgn_2002_state_tua_keyfitz.asp","timestamp":"2014-04-19T09:44:00Z","content_type":null,"content_length":"60685","record_id":"<urn:uuid:28822ccf-7089-40cc-8cdb-30e2ea5bf0c2>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20... |
Derivatives/Integrals, properties of sin/cos
July 19th 2008, 11:29 PM
Derivatives/Integrals, properties of sin/cos
Q: ʃʃ cos (x +2y) dy dx where 0 < x < pi; 0 < y < pi/2
When I integrate cos(x+2y) wrt y, do I get sin(x+2y)/2? How do I evaluate sin(x + pi)?
Does sin (x+c) = sin(x) + sin(c)?
July 19th 2008, 1... | {"url":"http://mathhelpforum.com/calculus/44101-derivatives-integrals-properties-sin-cos-print.html","timestamp":"2014-04-20T11:01:19Z","content_type":null,"content_length":"15909","record_id":"<urn:uuid:9b78ecbb-d39f-4045-9c4a-150cce21fe27>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005... |
OpenGL GLM C++ vertex and matrix transformations confusion
01-11-2013, 09:08 PM #1
Junior Member Newbie
Join Date
Dec 2012
OpenGL GLM C++ vertex and matrix transformations confusion
I'm pretty confused now that I can no longer do a simply gl_Position = pos * MVP; in my vertex shader, and instead want to transfo... | {"url":"http://www.opengl.org/discussion_boards/showthread.php/180788-OpenGL-GLM-C-vertex-and-matrix-transformations-confusion?p=1247022&viewfull=1","timestamp":"2014-04-17T19:01:43Z","content_type":null,"content_length":"41882","record_id":"<urn:uuid:2470a193-19a5-40db-9bb7-8c4de21f5f4b>","cc-path":"CC-MAIN-2014-15/se... |
Work Tasks
Applied MATHEMATICIANS use theories and techniques, such as modeling and computational methods, to solve practical problems in business, government, engineering, and the physical, life, and social
sciences. They may analyze the most efficient way to schedule airline routes between cities, or the effect and s... | {"url":"http://www.act.org/world/occs/occ257.html?TB_iframe=true","timestamp":"2014-04-20T06:26:12Z","content_type":null,"content_length":"3149","record_id":"<urn:uuid:4369a9e1-24a1-4794-9c99-ef1216c442d4>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00552-ip-10-147-4-33.ec2.interna... |
[Numpy-discussion] The value of a native Blas
Chris Barker Chris.Barker at noaa.gov
Thu Jul 29 12:01:05 CDT 2004
Hi all,
I think this is a nifty bit of trivia.
After getting my nifty Apple Dual G5, I finally got around to doing a
test I had wanted to do for a while. The Numeric package uses LAPACK for
the Linear Algebr... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2004-July/003331.html","timestamp":"2014-04-21T07:14:48Z","content_type":null,"content_length":"4355","record_id":"<urn:uuid:08967b71-a3bf-4e48-b9c8-d7db48f44882>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00575-ip-10-147-4-... |
Introduction to designing crossovers without measurement - Page 9 - diyAudio
Thank you gpapag and shmb.
This is a good question, and I thought it would help if I showed an example. I used an example similar to the tutorial with a 6.8Ω resistor, an 8.2µF capacitor, which I then increased to 40µF which
seemed extreme eno... | {"url":"http://www.diyaudio.com/forums/multi-way/189847-introduction-designing-crossovers-without-measurement-9.html","timestamp":"2014-04-17T04:54:09Z","content_type":null,"content_length":"85636","record_id":"<urn:uuid:03c6e96e-183c-41e5-b808-c558a2fb2c95>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC... |
Geometry and Connectedness of Heterotic String Compactifications with Fluxes
Le contenu de cette page n’est pas disponible en français. Veuillez nous en excuser.
Geometry and Connectedness of Heterotic String Compactifications with Fluxes
I will discuss the geometry of heterotic string compactifications with fluxes. Th... | {"url":"http://www.perimeterinstitute.ca/fr/videos/geometry-and-connectedness-heterotic-string-compactifications-fluxes","timestamp":"2014-04-19T01:36:11Z","content_type":null,"content_length":"29799","record_id":"<urn:uuid:4e89834c-c642-431a-8b60-b3c0551b1f3e>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/... |
A logic-Algebra problem...
Re: A logic-Algebra problem...
According to the equation, A^C must equal L * O * G * I * C
So, if, according to you, C = 5, then A ^ 5 is equal to L * O * G * I * 5.
What do you mean by A has a 7 next to it?
Your question doesn't make the most sense really.
Boy let me tell you what:
I bet you... | {"url":"http://www.mathisfunforum.com/viewtopic.php?id=7086","timestamp":"2014-04-18T08:09:12Z","content_type":null,"content_length":"11853","record_id":"<urn:uuid:54ebf67e-e069-4c18-88cb-aa24da942df3>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00046-ip-10-147-4-33.ec2.internal.wa... |
Physics Forums - View Single Post - Impulsive force
So this is the same thing i did before but updated with the new signs
I_x=.2(8.48528-9.02723)= -.10839
I_y=.2(8.48528-(-11.9795))= 4.092996
and to solve for the F_average i just do divide by .05
F_x=-.10839/.05 = -2.1678 N
F_y=4.092996/.05 = 81.8591 N | {"url":"http://www.physicsforums.com/showpost.php?p=1318602&postcount=5","timestamp":"2014-04-18T00:35:29Z","content_type":null,"content_length":"7023","record_id":"<urn:uuid:53d02d1e-2502-4be2-abb9-648c65a8f1ae>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00382-ip-10-147-4-33.ec2.i... |
Analysis Help required
November 9th 2012, 08:25 AM #1
Nov 2012
Analysis Help required
i need help with Analysis please!
how do you prove that a sequence (x[n]) diverges to infinity if and only if (-x[n]) diverges to -infinity??
it seems like quite a simple question but i cant think of a rigorous enough ... | {"url":"http://mathhelpforum.com/new-users/207111-analysis-help-required.html","timestamp":"2014-04-18T14:43:38Z","content_type":null,"content_length":"33471","record_id":"<urn:uuid:937e116f-d390-4e59-9f6c-ad07e64d7f43>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00315-ip-10-147-4-... |
A logic-Algebra problem...
Re: A logic-Algebra problem...
According to the equation, A^C must equal L * O * G * I * C
So, if, according to you, C = 5, then A ^ 5 is equal to L * O * G * I * 5.
What do you mean by A has a 7 next to it?
Your question doesn't make the most sense really.
Boy let me tell you what:
I bet you... | {"url":"http://www.mathisfunforum.com/viewtopic.php?id=7086","timestamp":"2014-04-18T08:09:12Z","content_type":null,"content_length":"11853","record_id":"<urn:uuid:54ebf67e-e069-4c18-88cb-aa24da942df3>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00046-ip-10-147-4-33.ec2.internal.wa... |
[FOM] CH and mathematics
Arnon Avron aa at tau.ac.il
Wed Jan 23 15:03:38 EST 2008
On Mon, Jan 21, 2008 at 04:08:37PM -0500, joeshipman at aol.com wrote:
> Some set theorists (for example, Patrick Dehornoy here:
> http://www.math.unicaen.fr/~dehornoy/Surveys/DgtUS.pdf.
> ) believe that recent work of Woodin makes CH a m... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2008-January/012574.html","timestamp":"2014-04-18T14:03:12Z","content_type":null,"content_length":"4546","record_id":"<urn:uuid:db889be1-5c6f-4ed7-9e7b-42b3a9bdfad7>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00446-ip-10-147-4-33.ec2.int... |
Diode voltage drop (connected in parallel with a resistor)
This means the answer in the book is wrong (when the ideal diode is considered).
They obtained a current through the diode less then current through the series resistor.
Perhaps there's a slight confusion of what "ideal diode" means? The real diode has the curr... | {"url":"http://www.physicsforums.com/showthread.php?t=573049","timestamp":"2014-04-19T17:31:18Z","content_type":null,"content_length":"63433","record_id":"<urn:uuid:3f6b5665-aeb0-4799-aa62-325f115f0aa4>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00456-ip-10-147-4-33.ec2.internal.w... |
Type I and II error
Type I error
A type I error occurs when one rejects the null hypothesis when it is true. The probability of a type I error is the level of significance of the test of hypothesis, and is denoted by *alpha*.
Usually a one-tailed test of hypothesis is is used when one talks about type I error.
If the c... | {"url":"http://faculty.cns.uni.edu/~campbell/stat/inf5.html","timestamp":"2014-04-19T07:06:19Z","content_type":null,"content_length":"7579","record_id":"<urn:uuid:2ba291ee-02a9-43db-a112-4abf84c40ea6>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00295-ip-10-147-4-33.ec2.internal.war... |
Falling object
June 6th 2007, 01:58 PM #1
Junior Member
Apr 2007
Q) A stone is thrown vertically upwards with a speed of 16m/s from a point h metres above the ground. The stone hits the ground 4s later. Find the value of h.
Using suvat equations, how is this done?
Thanks alot
the SUVAT equation we n... | {"url":"http://mathhelpforum.com/math-topics/15695-falling-object.html","timestamp":"2014-04-18T01:58:40Z","content_type":null,"content_length":"49628","record_id":"<urn:uuid:1dad5bd2-5004-40b2-9f21-620c2b5ce997>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00106-ip-10-147-4-33.ec2.... |
Puzzle Help - Twelve Crayons Solution
Home / Puzzle Help /
There are several possible ways to solve the puzzle.
Way 1. Making just plain figures like in Solutions 1, 2, and 5 below.
Way 2. Less obvious. You have to make your starting and finish shapes 3-dimensional. One of the most "classic" solutions is based on p... | {"url":"http://puzzles.com/PuzzleHelp/TwelveCrayons/TwelveCrayonsSol.htm","timestamp":"2014-04-21T02:51:37Z","content_type":null,"content_length":"26323","record_id":"<urn:uuid:323fa8ef-cd88-4d83-a1ef-2d6fe3a06adc>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00202-ip-10-147-4-33.ec... |
Classification of fat projective lines?
up vote 3 down vote favorite
In section III.3.4 of Eisenbud & Harris's "The Geometry of Schemes," we/they construct an infinite family of double structures on $\mathbb{P}^1 \subset \mathbb{P}^3$ that are distinguished from each
other by their genus. Here is the construction (let'... | {"url":"http://mathoverflow.net/questions/58288/classification-of-fat-projective-lines","timestamp":"2014-04-17T07:23:19Z","content_type":null,"content_length":"54244","record_id":"<urn:uuid:38f22e22-6841-42eb-9b62-2f13b5f6e47e>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00403-ip-... |
Eaton, CO Algebra Tutor
Find an Eaton, CO Algebra Tutor
...I have been a PowerPoint user since 1995. I have constructed presentations for simple group meetings, executive presentations and over 25 conference presentations. I understand not only how
develop all features in PowerPoint but how teach someone what level... | {"url":"http://www.purplemath.com/Eaton_CO_Algebra_tutors.php","timestamp":"2014-04-21T10:56:25Z","content_type":null,"content_length":"23516","record_id":"<urn:uuid:70ea5cbb-7d1e-4e78-8700-8a92681cdd2f>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00529-ip-10-147-4-33.ec2.internal.... |
A Response to Slate: How the recent article on technology misses the point.
Ah, summer. A great time to kick back, relax, and have time to write reactions to things that bug me.
I read through the article on Slate titled 'Why Johnny Can't Add Without a Calculator' and found it to be a rehashing of a whole slew of argum... | {"url":"http://evanweinberg.com/2012/06/28/a-response-to-slate-how-the-recent-article-on-technology-misses-the-point/","timestamp":"2014-04-19T20:23:42Z","content_type":null,"content_length":"57514","record_id":"<urn:uuid:7bdeea81-0be6-4aa7-8bd7-405fa9e20b86>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/C... |
Post a reply
Hi angie38;
Welcome to the forum.
First find the slope of the line you are given.
solve for y
The slope of this line is 2 / 3. For a line to be perpendicular to this one its slope must be a negative reciprocal. So therefore the slope of the new line is -(3 / 2).
The general form of the line you want is:
si... | {"url":"http://www.mathisfunforum.com/post.php?tid=18381&qid=239921","timestamp":"2014-04-20T16:56:12Z","content_type":null,"content_length":"20275","record_id":"<urn:uuid:6c77915a-215c-41a4-8cd3-c423e6109091>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00653-ip-10-147-4-33.ec2.int... |
Hurry up please it’s time
June 1st, 2007 by Hancock
I mentioned the problem of representing time in a
(working) mathematical model.
For many purposes, the natural numbers are perfect. This time is discrete,
has an origin, and no end.
For other purposes, we may prefer the (positive and negative) integers
[no beginning].... | {"url":"http://sneezy.cs.nott.ac.uk/fplunch/weblog/?p=62","timestamp":"2014-04-17T19:28:41Z","content_type":null,"content_length":"10782","record_id":"<urn:uuid:635228a5-edad-43fa-ab45-bc5a4c5b559b>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00047-ip-10-147-4-33.ec2.internal.warc.... |
Plainfield, IL Algebra 1 Tutor
Find a Plainfield, IL Algebra 1 Tutor
...I love teaching, and whilst I await registration at state level here I really want to continue to teach, tutor and help wherever possible. Secondary teaching Maths in Scotland includes
everything from basic skills (i.e., 5 year old ability due ... | {"url":"http://www.purplemath.com/plainfield_il_algebra_1_tutors.php","timestamp":"2014-04-16T05:05:46Z","content_type":null,"content_length":"24015","record_id":"<urn:uuid:2f61e2fe-f1bb-49ed-9b59-150b7a5dc137>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00265-ip-10-147-4-33.ec2.int... |
geometric problems of antiquity
geometric problems of antiquity, three famous problems involving elementary geometric constructions with straight edge and compass, conjectured by the ancient Greeks to be impossible but not proved
to be so until modern times. The three problems are: (1) the duplication of the cube, also... | {"url":"http://www.factmonster.com/encyclopedia/science/geometric-problems-antiquity.html","timestamp":"2014-04-18T15:03:49Z","content_type":null,"content_length":"22408","record_id":"<urn:uuid:3abad51b-f1f2-478a-9c74-c5d92635ce9b>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00466-... |
Microwave VNAs Add Nonlinear Network Analysis
A dverse effects of nonlinear behavior in active and passive high-frequency components can disrupt communications systems. As a result, it is desirable to understand such behavior, which requires the
right test equipment. To help, Agilent Technologies (www.agilent.com) has ... | {"url":"http://mwrf.com/print/test-and-measurement/microwave-vnas-add-nonlinear-network-analysis","timestamp":"2014-04-17T04:21:39Z","content_type":null,"content_length":"16952","record_id":"<urn:uuid:07742469-1acb-4e12-bcfc-9087b457be61>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206... |
Fin515 Final Exam
Fin515 Final Exam
Final Exam Page 1
1. (TCO A) Which of the following does NOT always increase a company's market value? (Points : 5)
Increasing the expected growth rate of sales
Increasing the expected operating profitability (NOPAT/Sales)
Decreasing the capital requirements (Capital/Sales)
Decreasin... | {"url":"http://www.termpaperwarehouse.com/essay-on/Fin515-Final-Exam/184067","timestamp":"2014-04-19T14:56:35Z","content_type":null,"content_length":"19063","record_id":"<urn:uuid:eecedcc0-bdad-437b-a80c-178b8f7fb252>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00429-ip-10-147-4-33.... |
Comfortable with shehes
A Bag of Contradictions
From: F William Lawvere, To: Posina Venkata Rayudu, Date: 30 Aug 2011
The lack of structure expressed by “completely distinguished from each other but with no distinguishing properties” for the elements of an abstract set is of course not an end in itself, but an
attempt ... | {"url":"http://conceptualmathematics.wordpress.com/2012/09/23/comfortable-with-shehes/","timestamp":"2014-04-16T10:48:20Z","content_type":null,"content_length":"78892","record_id":"<urn:uuid:8b84b03f-af14-4123-8ca7-5fcba2602404>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00581-ip-... |
geometric problems of antiquity
geometric problems of antiquity, three famous problems involving elementary geometric constructions with straight edge and compass, conjectured by the ancient Greeks to be impossible but not proved
to be so until modern times. The three problems are: (1) the duplication of the cube, also... | {"url":"http://www.factmonster.com/encyclopedia/science/geometric-problems-antiquity.html","timestamp":"2014-04-18T15:03:49Z","content_type":null,"content_length":"22408","record_id":"<urn:uuid:3abad51b-f1f2-478a-9c74-c5d92635ce9b>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00466-i... |
PDEs solvable as ODEs
May 9th 2009, 12:06 AM #1
PDEs solvable as ODEs
We have started PDEs in our MAth course in BE ME. We are following Kreyszig and I had problem understanding the basic concepts. It says "PDEs SOLVABLE AS ODEs : It happens if a PDE involves
derivatives with respect to one variable only (or ca... | {"url":"http://mathhelpforum.com/differential-equations/88209-pdes-solvable-odes.html","timestamp":"2014-04-19T10:04:11Z","content_type":null,"content_length":"49929","record_id":"<urn:uuid:de0a679a-4ef0-4728-866b-ef261030445a>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00093-ip-1... |
LDT Seminar
The weight system derived from Heisenberg Lie algebra and the polynomial representation of it is discussed. Although the use of the infinite-dimensional representation implies the values of the
weight system for web diagrams on circles diverge, it is shown that the values for the diagrams on a circle are fi... | {"url":"http://www.kurims.kyoto-u.ac.jp/~kenkyubu/proj01/abst18.html","timestamp":"2014-04-16T16:07:14Z","content_type":null,"content_length":"1395","record_id":"<urn:uuid:9dbcd03b-8dee-498a-84b5-3e9450d79040>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00528-ip-10-147-4-33.ec2.int... |
Preprints 2013
The three-letter code attached to the preprint number indicates the scientific programme during which the paper was written. Click on the code to see the programme details.
Preprint Author(s) Title and pub... | {"url":"http://www.newton.ac.uk/preprints2013.html","timestamp":"2014-04-21T14:49:16Z","content_type":null,"content_length":"30366","record_id":"<urn:uuid:c4a87ad4-4270-4fb9-abed-6c9dff47ab7a>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00560-ip-10-147-4-33.ec2.internal.warc.gz"} |
Got Homework?
Connect with other students for help. It's a free community.
• across
MIT Grad Student
Online now
• laura*
Helped 1,000 students
Online now
• Hero
College Math Guru
Online now
Here's the question you clicked on:
Happy birthday @Goodman
• one year ago
• one year ago
Your... | {"url":"http://openstudy.com/updates/502453afe4b09c3cae9dd977","timestamp":"2014-04-17T09:46:34Z","content_type":null,"content_length":"98646","record_id":"<urn:uuid:975c91fe-aa6d-49f2-a2ac-211700d5c127>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00590-ip-10-147-4-33.ec2.internal.... |
Whenever you pass coordinates to matplotlib, the question arises, what kind of coordinates you mean. Consider the following example
axes.text(x,y, "my label")
A label 'my label' is added to the axes at the coordinates x,y, or stated more clearly: The text is placed at the theoretical position of a data point (x,y). Thu... | {"url":"http://wiki.scipy.org/Cookbook/Matplotlib/Transformations?action=subscribe","timestamp":"2014-04-18T16:47:25Z","content_type":null,"content_length":"40061","record_id":"<urn:uuid:5b9859b6-7eca-442e-a56f-2a32e554440e>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00273-ip-10-1... |
"No Child left Behinds" Horrible logical conclusion.
02-01-2008, 08:04 PM
"No Child left Behinds" Horrible logical conclusion.
DeTurck is stirring the pot again, this time in a book scheduled to be published this year. Not only does he favor the teaching of decimals over fractions to elementary school students, he'... | {"url":"http://stoptazmo.com/chit-chat/27315-no-child-left-behinds-horrible-logical-conclusion-print.html","timestamp":"2014-04-24T20:12:53Z","content_type":null,"content_length":"24610","record_id":"<urn:uuid:cb2aa73d-40b8-4571-a52d-266885481033>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140... |
Chapter 8
Chapter 4 flashback ...
□ H[0] true H[0] false
□ Reject H[0] Type I error Correct
□ Fail to Correct Type II error
□ reject H[0]
□ Type I error is the probability of rejecting the null hypothesis when it is really true
□ The probability of making a type I error is denoted as... | {"url":"http://www.psych.utoronto.ca/courses/c1/chap8/chap8b.html","timestamp":"2014-04-18T02:59:28Z","content_type":null,"content_length":"11299","record_id":"<urn:uuid:913dfe18-8600-4936-b44e-130f95f2a14d>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00592-ip-10-147-4-33.ec2.inter... |
The Excel CUMPRINC Function
Basic Description
The Excel CUMPRINC function calculates the cumulative payment on the principal of a loan or investment, between two specified periods.
The syntax of the function is :
CUMPRINC( rate, nper, pv, start_period, end_period, type )
Where the arguments are as follows:
rate ... | {"url":"http://www.excelfunctions.net/Excel-Cumprinc-Function.html","timestamp":"2014-04-19T04:25:41Z","content_type":null,"content_length":"18584","record_id":"<urn:uuid:9304f0ea-1644-480b-a465-c1c65b9b9f98>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00543-ip-10-147-4-33.ec2.inte... |
4.2.1 Boolean Type
f95 supports constants and expressions of Boolean type. However, there are no Boolean variables or arrays, and there is no Boolean type statement.
4.2.1.1 Rules Governing Boolean Type
• For masking operations, a bitwise logical expression has a Boolean result; each of its bits is the result of one ... | {"url":"http://docs.oracle.com/cd/E19205-01/819-5263/6n7c0ccbc/index.html","timestamp":"2014-04-18T12:40:47Z","content_type":null,"content_length":"11742","record_id":"<urn:uuid:fb2cafbe-ce4d-4ff2-b2e0-e331d35bea7b>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00116-ip-10-147-4-33.e... |
Practice Problem (Intro to Discrete Math Class)
January 15th 2009, 08:32 AM
Practice Problem (Intro to Discrete Math Class)
Hey Everyone,
Just so you know I am in an Intro to Discrete Math class so this stuff should be pretty simple to the rest of you, but I'm not very good at it. This is an example question th... | {"url":"http://mathhelpforum.com/discrete-math/68343-practice-problem-intro-discrete-math-class-print.html","timestamp":"2014-04-18T12:10:12Z","content_type":null,"content_length":"8997","record_id":"<urn:uuid:32437d68-4db1-41e5-8899-c588426c4557>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140... |
Trigonometry H
Trigonometry Help
Math trigonometry help is accessible in Assignment Expert Company. We provide our clients with the best trigonometry solutions. We know answers almost to every your questions. If our trigonometry
help is interesting for you, then we are waiting for you. Be calm that we are real professi... | {"url":"http://www.assignmentexpert.com/math/trigonometry.html","timestamp":"2014-04-20T18:25:51Z","content_type":null,"content_length":"30000","record_id":"<urn:uuid:5960da59-c2ac-4d96-8532-a98cf4c374c8>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00520-ip-10-147-4-33.ec2.internal.... |
Voorhees Kirkwood, NJ Math Tutor
Find a Voorhees Kirkwood, NJ Math Tutor
...While in my job search I want to help any kids in math who may need it, as well providing any high schoolers seeking help or advice for possible engineering degree for college purposes. I am
currently serving part time in the military for t... | {"url":"http://www.purplemath.com/voorhees_kirkwood_nj_math_tutors.php","timestamp":"2014-04-18T18:57:12Z","content_type":null,"content_length":"24379","record_id":"<urn:uuid:a48a47cf-eb7f-4e3d-85ba-6d0a4e0cb9ae>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00510-ip-10-147-4-33.ec2.i... |
Total and Local Quadratic Indices of the Molecular Pseudograph's Atom Adjacency Matrix: Applications to the Prediction of Physical Properties of Organic Compounds
Author(s): Yovani Marrero PonceJournal: Molecules
ISSN 1420-3049
Start page:
Original pageKeywords: Molecular Vector Space
Total and Local Quadratic Index
Ph... | {"url":"http://www.journaldatabase.org/articles/total_local_quadratic_indices.html","timestamp":"2014-04-20T20:58:04Z","content_type":null,"content_length":"13872","record_id":"<urn:uuid:5a754426-a398-4501-9955-4449fce3d95b>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00155-ip-10-1... |
Case Study: Lamberton, MN
Formula for Fence Setback
D = H (sina) (12 + 49P + 7P^2 - 37P^3)
• D is the setback (m).
• H is the height of the fence (m).
• sina is the attack angle of the prevailing winter wind striking the road.
• P is the porosity percentage of the fe... | {"url":"http://www.climate.umn.edu/snow_fence/Components/Lamberton/lamberton8.htm","timestamp":"2014-04-21T09:42:27Z","content_type":null,"content_length":"10340","record_id":"<urn:uuid:92adb854-bd99-4bcf-a839-44e8ba3869e4>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00659-ip-10-147... |
The parabola is the locus of points on the plane that is equidistant from a fixed point called the focus and a fixed line called the directrix.
Elements of the Parabola
The focus is the fixed point F.
The directrix is the fixed line d.
Focal Parameter
The focal parameter is the distance from the focus to the directrix.... | {"url":"http://www.vitutor.com/geometry/conics/parabola.html","timestamp":"2014-04-17T00:48:12Z","content_type":null,"content_length":"13982","record_id":"<urn:uuid:57e1aa5e-c34e-4f1b-bff1-bf1085d438b2>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00611-ip-10-147-4-33.ec2.internal.wa... |
Re: Complex AGM
John Cremona on Wed, 15 Feb 2012 17:20:57 +0100
[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]
• To: Andreas Enge <andreas.enge@inria.fr>
• Subject: Re: Complex AGM
• From: John Cremona <john.cremona@gmail.com>
• Date: Wed, 15 Feb 2012 16:20:45 +0000
• Cc: pari... | {"url":"http://pari.math.u-bordeaux.fr/archives/pari-dev-1202/msg00048.html","timestamp":"2014-04-16T13:18:52Z","content_type":null,"content_length":"6091","record_id":"<urn:uuid:a0f05a85-fe57-4c67-ac7f-b15e69a21f82>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00341-ip-10-147-4-33.... |
Parallel Session P11: 1545-1730, Tuesday 13th April 2010
The Dark Art of Dark Matter - Session 1
Location: Bute
The goal of this session is to understand the mysterious dark matter that comprises 95% of the matter content of the Universe. The UK is at the forefront of research in the fields of Cosmology and
Particle Ph... | {"url":"http://www.astro.gla.ac.uk/nam2010/p11.php","timestamp":"2014-04-19T15:04:45Z","content_type":null,"content_length":"27015","record_id":"<urn:uuid:5e4d9f7a-79cd-4375-afe3-9dd2d3942502>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00644-ip-10-147-4-33.ec2.internal.warc.gz"} |
Results 1 - 10 of 20
- Journal of Cryptology , 1991
"... We show how a pseudo-random generator can provide a bit commitment protocol. We also analyze the number of bits communicated when parties commit to many bits simultaneously, and show that the
assumption of the existence of pseudo-random generators suffices to ass... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1154626","timestamp":"2014-04-17T16:02:56Z","content_type":null,"content_length":"38533","record_id":"<urn:uuid:d1486118-6185-44b6-aca3-b779f7b57c4b>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00204-ip-10-147-4-33.ec2.internal.war... |
Where’s the Magic? (EMD and SSA in R)
September 17, 2013
By Wayne
When I first heard of SSA (Singular Spectrum Analysis) and the EMD (Empirical Mode Decomposition) I though surely I’ve found a couple of magical methods for decomposing a time series into component
parts (trend, various seasonalities, various cycles, noi... | {"url":"http://www.r-bloggers.com/wheres-the-magic-emd-and-ssa-in-r/","timestamp":"2014-04-18T20:46:26Z","content_type":null,"content_length":"52707","record_id":"<urn:uuid:9d8c7182-5518-4d5b-b377-86fa8554f356>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00173-ip-10-147-4-33.ec2.in... |
Tech Powered Math: News, Graphing Calculator Reviews, Math Education Apps, Learn Math
Drawing Connections with TI-Nspire Functions vs Derivatives
Posted on November 11, 2013 by Lucas Allen • 0 Comments
Recently, I was very honored to have the opportunity to speak at a professional development day at Illinois Central C... | {"url":"http://www.techpoweredmath.com/category/ti-calculator-lessons/","timestamp":"2014-04-18T18:21:15Z","content_type":null,"content_length":"47244","record_id":"<urn:uuid:49962166-9a27-4daf-b2b7-9a513459d69b>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00394-ip-10-147-4-33.ec2.i... |
calculating the power spectrum
When you have a periodic signal you use the Fourier series to approximate the signal as a sum of sinusoidal signals at frequencies of 0 (the DC component), F (the frequency of the periodic signal),
and positive integer multiples of F. The coefficients of the Fourier series are the complex... | {"url":"http://www.physicsforums.com/showthread.php?t=185105","timestamp":"2014-04-16T22:17:59Z","content_type":null,"content_length":"32117","record_id":"<urn:uuid:a93a171e-b9c5-4723-be4d-2a5594bbf693>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00500-ip-10-147-4-33.ec2.internal.wa... |
Visual Insight
Catacaustic of a Cardioid
This image, drawn by Greg Egan, shows a cardioid and its catacaustic.
The cardioid is a heart-shaped curve traced by a point on the perimeter of a circle that is rolling around a fixed circle of the same radius. The catacaustic of a curve in the plane is the envelope
of rays emi... | {"url":"http://blogs.ams.org/visualinsight/2013/10/01/catacaustic-of-a-cardioid/","timestamp":"2014-04-17T04:12:38Z","content_type":null,"content_length":"27190","record_id":"<urn:uuid:5375b3c1-ed9c-4456-a299-055a6e8e8961>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00496-ip-10-147... |
Chasing Bottoms: A Case Study in Program Verification in the Presence of Partial and Infinite Values
Chasing Bottoms: A Case Study in Program Verification in the Presence of Partial and Infinite Values
Nils Anders Danielsson and Patrik Jansson
Proceedings of the 7th International Conference on Mathematics of Program Co... | {"url":"http://www.cse.chalmers.se/~nad/publications/danielsson-jansson-mpc2004.html","timestamp":"2014-04-19T12:23:10Z","content_type":null,"content_length":"3327","record_id":"<urn:uuid:999aef45-091c-4600-831f-b002375f92b0>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00192-ip-10-1... |
Hypothesis Testing for Two Proportions
January 13th 2012, 02:10 PM #1
Jan 2012
Hypothesis Testing for Two Proportions
I have a problem I am doing for hw for my Data Analysis II course, which involves the use of Minitab and need help. I solved it, but need to know if I had done it correctly.
Problem: A rando... | {"url":"http://mathhelpforum.com/advanced-statistics/195243-hypothesis-testing-two-proportions.html","timestamp":"2014-04-18T07:23:38Z","content_type":null,"content_length":"36736","record_id":"<urn:uuid:07e3a41f-40de-4ce5-8230-81c3bb3f3fd0>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005... |
Beyond the adiabatic approximation: exponentially small coupling terms
For multi-level time-dependent quantum systems one can construct superadiabatic representations in which the coupling between separated levels is exponentially small in the adiabatic limit. We
explicitly determine the asymptotic behavior of the expo... | {"url":"http://www.newton.ac.uk/programmes/HOP/Abstract2/teufel.html","timestamp":"2014-04-17T00:52:27Z","content_type":null,"content_length":"3106","record_id":"<urn:uuid:b0a8900d-7c5b-4c07-88ec-97cccbc71438>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00043-ip-10-147-4-33.ec2.int... |
La Honda Geometry Tutor
...I would like to identify the student's learning style and use different learning strategies to generate a dialogue. Re-working the school lesson and finding the point of confusion allow the
student to understand the concepts correctly and solve problems with simple guidance. Learning Prea... | {"url":"http://www.purplemath.com/La_Honda_Geometry_tutors.php","timestamp":"2014-04-20T11:09:38Z","content_type":null,"content_length":"23716","record_id":"<urn:uuid:df02bfd0-f770-4840-98dd-9eb1177a907a>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00159-ip-10-147-4-33.ec2.internal... |
Advanced ABAP operations with elementary data types
In this excerpt from the ABAP Cookbook, a publication of SAP Press, you'll discover some SAP ABAP advanced operations that can be performed using elementary data. You'll also learn how to use these
features in your ABAP programs.
Requires Free Membership to View
A... | {"url":"http://searchsap.techtarget.com/feature/Advanced-ABAP-operations-with-elementary-data-types","timestamp":"2014-04-20T13:19:52Z","content_type":null,"content_length":"97323","record_id":"<urn:uuid:24f5adf8-83e4-4bde-87ab-37236c70a56d>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-201404230320... |
On a variant of the equation $\sigma(x)=2^n$
up vote 0 down vote favorite
It is a nice exercise to prove that the only solutions (positive integers $x$) of the equation on the title are products of Mersenne primes; with all exponents equal to $1$.
((see also: A046528 in the OEIS))
Question: It is true that the only sol... | {"url":"http://mathoverflow.net/questions/62721/on-a-variant-of-the-equation-sigmax-2n","timestamp":"2014-04-16T22:38:53Z","content_type":null,"content_length":"48601","record_id":"<urn:uuid:46fb250c-7086-490c-bf55-1b9fb0725ff8>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00377-ip-1... |
How do people understand algebra if they never encounter it?
» How do people understand algebra if they never encounter it?
How do people understand algebra if they never encounter it?
June 30, 2011 Posted by News under Darwinism, Mind, Neuroscience 5 Comments
In “Geometric Principles Appear Universal in Our Minds” (W... | {"url":"http://www.uncommondescent.com/darwinism/how-do-people-understand-algebra-if-they-never-encounter-it/","timestamp":"2014-04-17T18:27:50Z","content_type":null,"content_length":"72315","record_id":"<urn:uuid:6d5004fd-76e3-4fa3-b6bc-de6fe5341f9f>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-2... |
no sets of six integers with every pair summing to a square
Supposing that there is a set (a,b,c,d,e,f) and a+b, a+c, a+d, b+c... are all squares. Then each member of the set can be paired with 5 others but a+b=b+a, so there are 5*6/2=15 combinations. 5
(a+b+c+d+e+f)=sum of all 15 squares.
If a,b and c are odd, a+b, b+... | {"url":"http://www.mathisfunforum.com/viewtopic.php?pid=183052","timestamp":"2014-04-17T04:00:39Z","content_type":null,"content_length":"11040","record_id":"<urn:uuid:fc834c44-3e69-46ca-9956-6fe4365393f9>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00494-ip-10-147-4-33.ec2.internal.... |
Seven Cubes Solution
Let n be a positive integer. Define the function f from Z^n to Z by f(x) = x_1+2x_2+3x_3+...+nx_n. For x in Z^n, say y is a neighbor of x if y and x differ by one in exactly one coordinate. Let S(x)
be the set consisting of x and its 2n neighbors. It is easy to check that the values of f(y) for y i... | {"url":"http://rec-puzzles.org/index.php/Seven%20Cubes%20Solution","timestamp":"2014-04-19T11:58:27Z","content_type":null,"content_length":"7314","record_id":"<urn:uuid:0ef24334-7d4a-46a6-80a0-929df90981e0>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00241-ip-10-147-4-33.ec2.intern... |
Historical question in analytic number theory
up vote 11 down vote favorite
The analytic continuation and functional equation for the Riemann zeta function were proved in Riemann's 1859 memoir "On the number of primes less than a given magnitude." What is the earliest
reference for the analytic continuation and functio... | {"url":"http://mathoverflow.net/questions/13130/historical-question-in-analytic-number-theory","timestamp":"2014-04-20T01:12:26Z","content_type":null,"content_length":"87736","record_id":"<urn:uuid:4314518b-f969-4e19-be81-fc49990ad8d4>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00... |
identify the distribution given the generating function
March 20th 2012, 06:40 PM #1
Apr 2010
identify the distribution given the generating function
I have derived a formula for the generating function as 2/3x^3 / 1-1/3x^3 and am asked to manipulate this so that it follows the general formula for a distributio... | {"url":"http://mathhelpforum.com/statistics/196199-identify-distribution-given-generating-function.html","timestamp":"2014-04-21T15:59:26Z","content_type":null,"content_length":"30006","record_id":"<urn:uuid:0dbbb111-b594-47c5-9ffe-322310c65a25>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-2014041... |
Would an energy diffraction ring in five space form a Minkowski space?
None of this makes even the remotest bit of sense. This is rather a feature of many of your posts, where you mix jargon from entirely unrelated areas of physics and expect others to make sense of the
resulting mess for you.
Please, if you have a ser... | {"url":"http://www.physicsforums.com/showthread.php?t=413965","timestamp":"2014-04-21T02:18:31Z","content_type":null,"content_length":"29093","record_id":"<urn:uuid:b41579ce-5457-48a7-aae3-5ddb62913898>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00358-ip-10-147-4-33.ec2.internal.w... |
Rosemead Prealgebra Tutor
...My teaching methods ensure that my students feel confident in their Algebra 2 abilities by making the subject as simple as possible. I was nominated for the Pursuit of Excellence award (the
highest award recognized at my school) in math due to my academic achievements in my honors Algeb... | {"url":"http://www.purplemath.com/Rosemead_Prealgebra_tutors.php","timestamp":"2014-04-17T04:45:08Z","content_type":null,"content_length":"24106","record_id":"<urn:uuid:8d7494a1-0f0a-4bec-b63e-3d585b56cc8f>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00636-ip-10-147-4-33.ec2.intern... |
Physics Forums - Linear Algebra - Matrix with given eigenvalues
Linear Algebra - Matrix with given eigenvalues
1. The problem statement, all variables and given/known data
Come up with a 2 x 2 matrix with 2 and 1 as the eigenvalues. All the entries must be positive.
Then, find a 3 x 3 matrix with 1, 2, 3 as eigenvalue... | {"url":"http://www.physicsforums.com/printthread.php?t=593257","timestamp":"2014-04-19T22:45:29Z","content_type":null,"content_length":"18213","record_id":"<urn:uuid:768ae949-eff8-44d9-a695-f38cf2674f98>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00639-ip-10-147-4-33.ec2.internal.w... |
Question about an early result on the mixing of geodesic flows
up vote 4 down vote favorite
Let $T_t$ be the geodesic flow on a surface $S$ of constant negative curvature, and let $M(f,t) := \langle \bar f \cdot (f \circ T_t) \rangle$, where $\langle f \rangle := \int_S f(x) d\mu(x)$ and
where $\mu$ is the natural inva... | {"url":"http://mathoverflow.net/questions/50539/question-about-an-early-result-on-the-mixing-of-geodesic-flows?sort=newest","timestamp":"2014-04-16T19:39:33Z","content_type":null,"content_length":"56202","record_id":"<urn:uuid:7fcac2c7-b884-4549-9a88-5269318cc587>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/w... |
Alsip Trigonometry Tutor
Find an Alsip Trigonometry Tutor
...Most importantly, I thoroughly enjoy tutoring, building a rapport with students and parents and helping students to develop and understand concepts and skills that they were not able to
before. I have a particular knack for figuring out what is holding st... | {"url":"http://www.purplemath.com/Alsip_trigonometry_tutors.php","timestamp":"2014-04-19T12:01:12Z","content_type":null,"content_length":"24046","record_id":"<urn:uuid:711a1a34-3d4a-4d11-835c-899513ac94ea>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00143-ip-10-147-4-33.ec2.interna... |
Got Homework?
Connect with other students for help. It's a free community.
• across
MIT Grad Student
Online now
• laura*
Helped 1,000 students
Online now
• Hero
College Math Guru
Online now
Here's the question you clicked on:
A steam turbine has an inlet condition of P1 = 30 bar, T1 = 40... | {"url":"http://openstudy.com/updates/517ebf77e4b0ad25bbe3a709","timestamp":"2014-04-19T10:28:50Z","content_type":null,"content_length":"25431","record_id":"<urn:uuid:d5dd7e68-617b-40ac-aa08-1c844fe31401>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00649-ip-10-147-4-33.ec2.internal.... |
Trinary Search
I am trying to convert a binary search into a trinary search. I have to keep both functions in the program, and I cannot figure out how to continue on to the trinary search after the binary has
How does a trinary search work, exactly? I've never heard of it.
It is just a function that searches for a user... | {"url":"http://www.cplusplus.com/forum/beginner/94289/","timestamp":"2014-04-20T06:06:33Z","content_type":null,"content_length":"14860","record_id":"<urn:uuid:b21bdeb1-859a-4e79-92e7-0aaf02eca17b>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00657-ip-10-147-4-33.ec2.internal.warc.gz... |
Surface Area (2 Parts)
Find the surface area of that portion of the plane
z = 1+2 x-3 y that lies above the triangular region in the xy -plane with vertices (0, 0 ), (3, 0) , and (0, 2) .
I dont understand how to set up the integral or evaluate it....
Using the same plane, z=1+2x-3y, find the surface ar... | {"url":"http://mathhelpforum.com/calculus/43143-surface-area-2-parts.html","timestamp":"2014-04-18T01:48:12Z","content_type":null,"content_length":"41894","record_id":"<urn:uuid:164cf38a-f97e-4830-8845-adcfa778649d>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00520-ip-10-147-4-33.e... |
Computer Adaptive Test Assuming an Infinite Item Pool
Original Code
# In order for us to understand what a Computer Adaptive Test (CAT) is, let's first think about how the CAT works.
# A CAT test starts by having some kind of initial assessment of student ability (test taker's ability).
# This is typically at the popul... | {"url":"http://www.econometricsbysimulation.com/2012/11/computer-adaptive-test-assuming.html","timestamp":"2014-04-21T04:34:07Z","content_type":null,"content_length":"192064","record_id":"<urn:uuid:b201a233-294c-4b43-8da9-06525930ee64>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00... |
Got Homework?
Connect with other students for help. It's a free community.
• across
MIT Grad Student
Online now
• laura*
Helped 1,000 students
Online now
• Hero
College Math Guru
Online now
Here's the question you clicked on:
lim_{x rightarrow infty} (-3x+sqrt{9x^2+4x-5}) The answer is a... | {"url":"http://openstudy.com/updates/506c77b4e4b060a360fe85af","timestamp":"2014-04-18T03:22:17Z","content_type":null,"content_length":"55261","record_id":"<urn:uuid:85fc1457-4e67-40d2-a50e-82e2477e58f7>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00041-ip-10-147-4-33.ec2.internal.... |
[70.07] Visualizing the Big Bang: An Introduction to Topology and 3-Manifolds for Undergraduates
AAS Meeting #194 - Chicago, Illinois, May/June 1999
Session 70. Astronomy and Education
Display, Wednesday, June 2, 1999, 10:00am-6:30pm, Southwest Exhibit Hall
[Previous] | [Session 70] | [Next]
[70.07] Visualizing the Big... | {"url":"http://aas.org/archives/BAAS/v31n3/aas194/140.htm","timestamp":"2014-04-21T02:39:35Z","content_type":null,"content_length":"2924","record_id":"<urn:uuid:20ed06e0-3623-4d85-91e4-c1eeceb0ab9c>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00495-ip-10-147-4-33.ec2.internal.warc.... |
Post a reply
Differentiating the products and quotients of trig functions tend to create a monster, since the product and quotient rule for differentials tend to produce expressions that are a bit on the long
side. This tends to lead to a trigonometric identity nightmare! What I'm wondering is, is it ok to rearrange th... | {"url":"http://www.mathisfunforum.com/post.php?tid=2073","timestamp":"2014-04-18T19:07:44Z","content_type":null,"content_length":"17014","record_id":"<urn:uuid:ab3f391e-b9c9-4597-b310-ad1cd9b842cc>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00349-ip-10-147-4-33.ec2.internal.warc.gz... |
Math Forum Discussions - Blanknhorn modification of G-K and Euler methods for ellipse circumference
Date: Oct 18, 2012 2:08 AM
Author: thomasinventions@yahoo.com
Subject: Blanknhorn modification of G-K and Euler methods for ellipse circumference
Gauss-Kummer and Euler methods for ellipse circumference calculation can b... | {"url":"http://mathforum.org/kb/plaintext.jspa?messageID=7907883","timestamp":"2014-04-19T20:21:11Z","content_type":null,"content_length":"2205","record_id":"<urn:uuid:cda09fe4-d1f5-47a9-a31b-fd6866aa260c>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00128-ip-10-147-4-33.ec2.internal... |
Fox Island Geometry Tutor
...This provides a springboard for continued success in life, and a thorough understanding of the basics of math, English, science and the liberal arts is what I focus on for students attempting
to pass the exam. As an instructor, I strive to provide background information and context to m... | {"url":"http://www.purplemath.com/Fox_Island_Geometry_tutors.php","timestamp":"2014-04-17T21:55:17Z","content_type":null,"content_length":"23843","record_id":"<urn:uuid:48419189-3794-4c2d-b311-2d4667271c3a>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00490-ip-10-147-4-33.ec2.intern... |
300 ton equals how many kg
You asked:
300 ton equals how many kg
272,155.422 kilograms
the mass 272,155.422 kilograms
Say hello to Evi
Evi is our best selling mobile app that can answer questions about local knowledge, weather, books, music, films, people and places, recipe ideas, shopping and much more. Over the next ... | {"url":"http://www.evi.com/q/300_ton_equals_how_many_kg","timestamp":"2014-04-19T14:30:36Z","content_type":null,"content_length":"52260","record_id":"<urn:uuid:1be7e002-66e2-4cb4-afa4-9f664d86847f>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00231-ip-10-147-4-33.ec2.internal.warc.gz... |
Weekly Problem 40 - 2010
Copyright © University of Cambridge. All rights reserved.
'Weekly Problem 40 - 2010' printed from http://nrich.maths.org/
The diagram shows nine points in a square array. What is the smallest number of points that need to be removed in order that no three of the remaining points are in a straig... | {"url":"http://nrich.maths.org/7134/index?nomenu=1","timestamp":"2014-04-19T12:45:49Z","content_type":null,"content_length":"3683","record_id":"<urn:uuid:bb671e9b-2e6b-4f79-ab4a-cc24d0111006>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00450-ip-10-147-4-33.ec2.internal.warc.gz"} |
Got Homework?
Connect with other students for help. It's a free community.
• across
MIT Grad Student
Online now
• laura*
Helped 1,000 students
Online now
• Hero
College Math Guru
Online now
Here's the question you clicked on:
What is the inverse of the statement “If you study for the tes... | {"url":"http://openstudy.com/updates/512d20eae4b098bb5fbbf991","timestamp":"2014-04-18T23:58:02Z","content_type":null,"content_length":"53701","record_id":"<urn:uuid:14e01a1e-e96d-4c45-9f0a-9d0cc1d94500>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00235-ip-10-147-4-33.ec2.internal.w... |
Reply to comment
March 2006
The maths behind the music
The transformation rule which is the basis for Nick's composition uses the complex function
Iterating this function starting with a given value
Any complex number
z = x+ iy
can also be thought of as the pair
of real numbers, so the formula does indeed transform one... | {"url":"http://plus.maths.org/content/comment/reply/2425","timestamp":"2014-04-18T08:50:12Z","content_type":null,"content_length":"22376","record_id":"<urn:uuid:491ea986-95df-4ee7-a088-aece3b838a20>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00513-ip-10-147-4-33.ec2.internal.warc.... |
Recommend: A Course in Machine Learning
The following content is totally copied from the website of A Course in Machine Learning.
CIML is a set of introductory materials that covers most major aspects of modern machine learning (supervised learning, unsupervised learning, large margin methods, probabilistic modelin... | {"url":"http://blog.pengyifan.com/recommend-a-course-in-machine-learning/","timestamp":"2014-04-18T23:15:42Z","content_type":null,"content_length":"26937","record_id":"<urn:uuid:adc70713-d115-439a-aa67-2dcb42d8d29d>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00038-ip-10-147-4-33.e... |
Cardinal number exercise
March 28th 2008, 11:53 PM #1
MHF Contributor
Oct 2005
Cardinal number exercise
5.10 Exercise: Give examples of infinitely many infinite sets no two of which have the same cardinal number.
My text defines "countably infinite" to be a set that is countable but not infinite. Also it de... | {"url":"http://mathhelpforum.com/number-theory/32397-cardinal-number-exercise.html","timestamp":"2014-04-20T01:27:26Z","content_type":null,"content_length":"61118","record_id":"<urn:uuid:4b94e221-80e8-44c9-9fa7-de798060638a>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00580-ip-10-1... |
DragonBox Algebra
DragonBox Algebra 12+ is a must-have tool for students so they can earn better grades and gain confidence in algebra and mathematics. It is based on the award winning game DragonBox Algebra 5+ but
covers more advanced topics in mathematics and algebra:
* Parentheses
* Positive and Negative signs
* Ad... | {"url":"https://play.google.com/store/apps/details?id=com.wewanttoknow.DragonBox2&hl=en","timestamp":"2014-04-21T00:07:51Z","content_type":null,"content_length":"220313","record_id":"<urn:uuid:524f1fa8-f417-419e-8a19-eda5a28aa61b>","cc-path":"CC-MAIN-2014-15/segments/1397609539337.22/warc/CC-MAIN-20140416005219-00156-i... |
This work gives a full description of a method for analyzing the admissible complex representations of the general linear group G = Gl(N,F) of a non-Archimedean local field F in terms of the
structure of these representations when they are restricted to certain compact open subgroups of G. The authors define a family o... | {"url":"http://press.princeton.edu/titles/5270.html","timestamp":"2014-04-21T04:33:20Z","content_type":null,"content_length":"13145","record_id":"<urn:uuid:6c4fa73b-baff-41e7-acf3-a1caf848d1b2>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00456-ip-10-147-4-33.ec2.internal.warc.gz"} |
separability problem
January 15th 2012, 01:58 PM #1
Jan 2012
separability problem
Hello! At the moment I'm preparing for an exam, and I'm stuck trying to answear the following (any suggestions are welcome):
Let H be a Hilbert space and denote by L(H) the space of all continuous linear maps from H to H (L(H)... | {"url":"http://mathhelpforum.com/differential-geometry/195357-separability-problem.html","timestamp":"2014-04-18T21:56:17Z","content_type":null,"content_length":"41293","record_id":"<urn:uuid:6ce5ac3c-5ab0-4d4a-8973-aae8539537a5>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00631-ip-... |