OpenLLM-France/wikimedia huggingface dataset:
# Optimizing Code for Speed/Optimizing by Reducing Feature-Set

"There ain't no such thing as a free lunch". The more features your program has, the more code is required to implement them, which in turn consumes more memory, and slows things down. Furthermore, it requires more conditionals and often even loops, which also require extra processing. Thus, by removing features from one's application, one can have faster code.
For example, in "How Microsoft Lost the API War", Joel Spolsky tells that Microsoft has gone to great lengths to maintain bug-to-bug (binary) backward compatibility for their Windows-line of operating system. As a result, buggy software that relied on API quirks that got changed, often could still work in later versions of Windows, because Microsoft made sure that Windows supplied them with a similar environment. As a result of maintaining all of this backward compatibility, there was more code in Microsoft's products, which may have contributed to the common and notorious perception that they became slower with each release.

## Optimizing by Introducing Bugs

Furthermore, we can say that often bug fixes (for example boundary checks, sanity checks, etc.) will have a negative influence on the program's performance, and as a result not fixing these bugs or introducing new bugs is also a possible way to optimize (but not a very recommended one).

## Optimizing by Compromising on Security

I can go further than that, and claim that one can often optimize one's code by compromising on its security. The less sanity checks, input checks, etc. a code has - the faster it will run. For example, a code that does not have a lot of checking for the failure (and graceful handling) of dynamic memory allocation calls (in languages such as C without managed programming) such as malloc, will run faster. (Until and if it runs out of memory and then crashes.)
I read somewhere that programmers complained that checking and handling errors in their programs made them have to write about 4 times more code, which makes sense. All this code slows the program down when everything runs as expected.
Note that "Here be dragons". It's probably never a good idea to compromise on security in order to increase speed. But I've mentioned it here for completeness sake.
# Pinyin/Civil engineering

See also
Civil engineering is the term for the work of designing and building infrastructure. It usually means large structures, like bridges, dams, buildings, and tunnels. It also covers complicated networks such as water, irrigation and sewerage networks. It also covers the construction of houses and homes. Civil engineers can be involved in all stages in the life of infrastructure, from planning and construction to maintenance and demolition. Civil engineering often overlaps with architecture.
Tǔmù-gōngchéng shì shèjì hé jiànzào jīchǔ-shèshī de gōngzuò de shùyǔ. Tā tōngcháng shì dà de jiégòu, rú qiáoliáng, shuǐbà, jiànzhùwù, hé suìdào. Tā yě bāokuò fùzá de wǎngluò, lìrú shuǐ, guàngài, xiàshuǐdào děng wǎngluò. Tā yě bāokuò fángwū hé zhùzhái de jiànshè. Tǔmù-gōngchéngshī huì cānyù jīchǔ-shèshī shǐyòng-shòumìng de gège jiēduàn, cóng guīhuà, jiànzào, bǎoyǎng zhì chāichú. Tǔmù-gōngchéng jīngcháng yǔ jiànzhù-shèjì chóngdié.
# Pinyin/Chuanr

A chuanr is a kind of kebab. It is a skewer of small pieces of roast meat.
Chuànr shì yī zhǒng kebab. Tā shì yī chuàn xiǎokuài de kǎoròu.
# Pinyin/Civil Engineer

See also
A civil engineer is a person who practices civil engineering – the application of planning, designing, constructing, maintaining, and operating infrastructures while protecting the public and environmental health, as well as improving existing infrastructures that have been neglected.
Tǔmù gōngchéngshī shì cóngshì tǔmù gōngchéng gōngzuò de gōngchéngshī. Gōngzuò bāokuò zhíxíng jīchǔ shèshī d jìhuà, shèjì, jiànzào, wéihù, hé yùnyíng, tóngshí bǎohù gōngzhòng hé huánjìng de jiànkāng, yǐjí gǎishàn bèi hūlüèle de xiànyǒu jīchǔ shèshī.
# Pinyin/Civil war

Search Pinyin war
# Pinyin/Circumcision

Circumcision means the use of surgery to cut away part or whole of the prepuce. Sometimes the frenulum of prepuce on the ventral side of the penis, near the urethral orifice, are completely removed, known as frenectomy. Being a kind of therapeutic surgery, circumcision can be used to treat various diseases, including: pathological phimosis, chronic acroposthitis, penis cancer, etc. If performing circumcision too frequently, will encounter criticisms, reasons of which include: misunderstanding of indications; and the use of circumcision, even if there is other less invasive and more effective methods of treatment.
Bāopíhuánqiēshù shì zhǐ yǐ shǒushù qiēchú bùfèn huò quánbù de bāopí. Yǒushí yīnjīng-fùmiàn kàojìn niàodào-kǒu de bāopí-xìdài yě yībìng qiēchú, chēngwéi xìdàiqiēchúshù. Zuòwéi yīzhǒng zhìliáoxìng de shǒushù, bāopíhuánqiēshù kě yòngyú zhìliáo duōzhǒng bìngzhèng, bāokuò: bìngtàixìng bāojīng, mànxìng bāopíyán, yīnjīng'ái děng. Rúguǒ shīxíng bāopíhuánqiēshù tài pínfán, huì zāodào pīpíng, yuányīn bāokuò: shìyìngzhèng bèi wùjiě; háiyǒu jiùshì yǐjīng yǒu qítā shānghàixìng xiǎo yòu yǒuxiào de zhìliáo fāngfǎ, dànshì réngrán shīxíng bāopíhuánqiēshù.
# Pinyin/Citizen

See also
# Pinyin/Circumstance

A circumstance is a fact or condition that affects a situation.
zhuahngkuahng shih yiingxiaang qirngkuahng d shihshir huoh zhuahngtaih.
# Pinyin/City

See also

## Noun

* a city is a large and important town.
** cherngshih shih dah d zhohngyaoh shihzhehn.
# Overcoming Procrastination/Introduction

Procrastination or "task aversion" is the irrational delay of an intended course of action, even while expecting to be worse off for the delay (compare temporisation). The procrastinator deviates from the task, usually in favor of another more enjoyable (or less unenjoyable) activity. This behavior is pervasive throughout society - everyone procrastinates to some degree - but some people are so chronically affected as to be severely debilitated.
Procrastination is typically caused by the association of pain or discomfort with the prospective course of action; that is: stress. This may be physical (such as that experienced during hard labor or vigorous exercise) or psychological (such as in the form of frustration or anxiety). The task or the situation requiring the task may be perceived as dangerous, painful, overwhelming, difficult, tedious, uncomfortable, or boring; basically, unenjoyable; that is: stressful. Once habitualized, procrastination can be triggered at any time. Procrastination can also be a symptom of a serious psychiatric disorder such as depression or ADHD (attention-deficit hyperactivity disorder), and may be greatly reduced when the underlying condition is properly treated.
Traditionally, in the field of psychology, procrastination has been associated with perfectionism (a tendency to negatively evaluate one's own performance). However, research indicates that perfectionists are not any more likely to procrastinate, though they feel worse about it when they put things off.
The word procrastination comes from Latin, Pro, "in favor of", and Cras, "tomorrow".
# Overview

| bad | good |
| Introduction | Organic Chemistry/Introduction |
| Overview of Functional Groups | Organic Chemistry/Overview of Functional Groups |
| Authors | Organic Chemistry/Authors |
# Overcoming Procrastination/History

This book, Overcoming Procrastination, is an adaptation of the Revision as of 18:39, 8 March 2006 of the Wikipedia article, "Procrastination", authored by various Wikipedia contributors.
# Overview of Elasticity of Materials
## Table of Contents

Introduction
I Introducing Stress (Oct 1, 2021)
II Introduction to Tensors (Oct 1, 2021)
III Introducing Strain (Oct 1, 2021)
IV Isotropic Response (Aug 31, 2021)
V Anisotropic Response (Aug 31, 2021)
VI Example Problems (Aug 31, 2021)

## Appendix

Appendix A: Coordinate Notation (Aug 31, 2021)
Appendix B: List of Variables (Aug 31, 2021)
# Overview of Elasticity of Materials/Appendix A: Coordinate Notation

This is a discussion of the notational choices used in the book including the coordinate choices.
# Pinyin/Tense

See also
# Pinyin/Tested

Search tested
# Pinyin/Text

Text is any form of written material.
wernbeen shih rehnher xirngshih d shumiahn cairliaoh.
# Pinyin/Term

See also
# Pinyin/Thank

See also
# Pinyin/Territory

Search Pinyin territory
# Pinyin/Test

Search test
# Pinyin/Test-Fire

Search test-fire
Search fire
# Pinyin/Working

See also
# Pinyin/World

Search Pinyin world
Search Pinyin Earth

## Noun

* the world is the Earth that humans and non-human animals live on.
** shihjieh jiuhshih rernleih her fei-rernleih dohngwuh shenghuor d Dihqiur.
# Pinyin/Worry

See also
# Pinyin/Worker

Search worker
# Pinyin/Work

See also
# Pinyin/Worm

Search Pinyin worm
# Pinyin/World Bank
## See also

* Pinyin/World
* Pinyin/Bank
# Pinyin/World Health Organization

* shìwèi zǔzhī
* shìjiè wèishēng zǔzhī

## See also

* Pinyin/World
* Pinyin/Health
* Pinyin/Organization
# Pinyin/Worsen

See also
# XML - Managing Data Exchange/Stylesheet section workspace

* Chapters
* Appendices
* Exercises
* Computer Science Home
* Library and Information Science Home
* Markup Languages
* To do list
* Contributors list
* Contributing to Wikibooks
| Previous Chapter | Next Chapter |
| ← XML Colors | Resources → |
# XML - Managing Data Exchange/The many-to-many relationship/Answers

Many-to-Many Chapter => The Many-to-Many Relationship
Many-to-Many Exercises => Exercises

## 1) Movie Collection

Use the following data model:
    a. Using the IDREF method, create an XML schema to describe the illustrated data model. Include all of the attributes listed in the data model.
    b. Create an XML document that includes at least two movies and two cast members per movie.
    c. Create a simple XML style sheet to present the information in HTML format. No tables or CSS are necessary.

### the Stylesheet
## 2) Student/Class Directory

    a. Every class at a school can have many students, and each student can be registered to more than one class at a time. Create an XML schema to capture this many-to-many relationship. Be sure to include the class name, capacity, building number, building name, and room number. Also include the student first/last name separately and his or her grade for the class.
    b. Using the XML schema created in part a, create an XML document and an XML stylesheet. You can make up your own data, but be sure to use at least three students for each class.

### the Stylesheet

Many-to-Many Chapter => The Many-to-Many Relationship
Many-to-Many Exercises => Exercises
# XML - Managing Data Exchange/The many-to-many relationship/Exercises

Many-to-Many Chapter => The Many-to-Many Relationship
Many-to-Many Answers => Answers

## 1) Movie collection

Use the following data model:
    a. Using the IDREF method, create an XML schema to describe the illustrated data model. Include all of the attributes listed in the data model.
    b. Create an XML document that includes at least two movies and two cast members per movie.
    c. Create a simple XML style sheet to present the information in HTML format. No tables or CSS are necessary.

## 2) Student/Class Directory

    a. Every class at a school can have many students, and each student can be registered to more than one class at a time. Create an XML schema to capture this many-to-many relationship. Be sure to include the class name, capacity, building number, building name, and room number. Also include the student first/last name separately and his or her grade for the class.
    b. Using the XML schema created in part a, create an XML document and an XML stylesheet. You can make up your own data, but be sure to use at least three students for each class.
Many-to-Many Chapter => The Many-to-Many Relationship
Many-to-Many Answers => Answers
# XML - Managing Data Exchange/SyncML/Answers
## SyncML Exercises

1) Visit the Open Mobile Alliance Website, download the pdf of the SyncML v. 1.1 protocol and review it. Reading this reference is a valuable exercise in learning.
2) Answer these questions: a. What is WBXML and why is it used? b. How do you foresee SyncML being used in the future? c. Name a problematic situation whereby SyncML is the best 'tool' for the job.

## Answers

2a. WBXML is a form of XML that abbreviates XML tags by using a binary representation of the tag. Tags need to be abbreviated in order to work with mobile devices that have limited bandwidth and limited memory.
2b. SyncML could be used in any application in which synchronization is needed such as calendars, address books, phone books, inventory tracking, etc.
2c. An auto mechanic needs to view the work history on cars in the shop. A PDA can be used to view work logs, active work orders, and to log work done towards a current work order.
# XML - Managing Data Exchange/The one-to-many relationship/Exercises
## Chapter

To return to the chapter, follow this link: One-to-many relationship

## 1. Museum information

* a. Create an XML schema to describe a museum (use elements of the museum entity defined in the last chapter, and add to it a country element). Specify a set of acceptable values as a country and its calendar with date, opening time, and closing time.
* b. Using the schema, create an XML document and populate it with data for two museums with at least 5 different dates in the calendar for one museum and 7 different dates for the other museum.

## 2. Currency codes for tourist guides

* a. Help the guides by creating a valid and well-formed XML schema describing currency codes (e.g. EUR for Euros). The currency code element should consist of three characters. Along that the country's name (e.g. Germany) and the name of the currency (e.g. Euros) should be included. Create a XML document in which some currency codes are listed.

## 3. The spa finder

* a. the XML schema - the Spa Finder lists many spas, each spa serves many activities, and each activity is offered at many days and times by different practitioners.
* Extra- you could use enumeration for the SERVICE, listing some pre-determined services (ie. European Facial, Avocado Facial, Hot Stone Massage, Reflexology, Accupressure, Yoga, TaiChi).
* b. the XML document - fill in the data for 3 spas with at least 3 services each and at least 2 offerings of each service.

## 4. Movie Database

* Create an XML schema to depict a relationship between movie genres, movies, and actors/actresses.
* Choose two genres (drama, horror, action, etc.), two movies in each, and several actors/actresses from each.
* Using the schema, create a document and populate it with the chosen information.
* Create an XML stylesheet to present the data for easier readability. Reference the stylesheet in the document.

## Answers

To view the answers, follow this link: answers
# Mathematical Methods of Physics/Analytic functions

Complex analysis maintains a position of key importance in the study of physical phenomena. The importance of the theory of complex variables is seen particularly in quantum mechanics, for complex analysis is just a useful tool in classical mechanics but is central to the various peculiarities of quantum physics.

## Complex functions

A function $f:\mathbb {C} \to \mathbb {C}$ is a complex function.

### Continuity

Let $f$ be a complex function. Let $a\in \mathbb {C}$
$f$ is said to be continuous at $a$ if and only if for every $\epsilon >0$, there exists $\delta >0$ such that $|z-a|<\delta$ implies that $|f(z)-f(a)|<\epsilon$

### Differentiablity

Let $f$ be a complex function and let $a\in \mathbb {C}$.
$f$ is said to be differentiable at $a$ if and only if there exists $L\in \mathbb {C}$ satisfying $\lim _{z\to a}{\frac {f(z)-f(a)}{z-a}}=L$

## Analyticity

It is a miracle of complex analysis that if a complex function $f$ is differentiable at every point in $\mathbb {C}$, then it is $n$ times differentiable for every $n\in \mathbb {N}$, further, it can be represented as te sum of a power series, i.e.
for every $z_{0}$ there exist $a_{0},a_{1}a_{2},\ldots$ and $\delta >0$ such that if $|z-z_{0}|<\delta$ then $f(z)=a_{0}+a_{1}(z-z_{0})+a_{2}(z-z_{0})^{2}+\ldots$
Such functions are called analytic functions or holomorphic functions.

## Path integration

A finite path in $\mathbb {C}$ is defined as the continuous function $\Gamma :[0,1]\to \mathbb {C}$
If $f$ is a continuous function, the integral of $f$ along the path $\Gamma$ is defined as
$\int _{0}^{1}f(\Gamma (x))dx$, which is an ordinary Riemann integral
# Mathematical Methods of Physics/Fourier transforms

Fourier transforms are used in practically every field of physics. They are used to transform a variable into the space of another which is either easier or more informative (for instance, one may be able to express an electromagnetic wave in terms of the electric field strength - but for real-life measurements we want to express the wave as a sum of several frequencies (called spectral-decomposition))
This is similar in usage to the Laplace transform - but is much better suited to functions with some oscillating behavior.
${\tilde {f}}(s)=\int \limits _{-\infty }^{\infty }f(t)e^{-2\pi ist}\ dt$ and $f(t)=\int \limits _{-\infty }^{\infty }{\tilde {f}}(s)e^{2\pi ist}\ ds$
(Note that some textbooks will have different factors in front of these integrals)
== Examples
Applying the Fourier Transform integral : ${\tilde {E}}(\omega )=\int \limits _{-\infty }^{\infty }E_{0}sin(\omega _{0}t)e^{-2\pi i\omega t}\ dt$
To do this we will need to remember a few identities,
* $sin(x)={\frac {e^{x}-e^{-x}}{2i}}\$
* $e^{a}e^{b}=e^{a+b}$
* $\int \limits _{-\infty }^{\infty }e^{i(x-x')t}dt=\delta (x-x')$
Using the first and second identities, ${\tilde {E}}(\omega )={\frac {E_{0}}{2i}}\ \int \limits _{-\infty }^{\infty }[e^{2\pi i(\omega _{0}+\omega )t}+e^{2\pi i(\omega _{0}-\omega )t}]dt$
From here we can see that each integral is simply a delta function and we reduce it to ${\tilde {E}}(\omega )={\frac {E_{0}}{2i}}\ [\delta (2\pi (\omega _{0}+\omega ))+\delta (2\pi (\omega _{0}-\omega ))]$
This tells us that the only frequencies with a non-zero amplitude are $\omega _{0}$ and $-\omega _{0}$. But as physicists we know that frequencies are not negative, so this matches the result expected (i.e. there is only one frequency present)
# Mathematical Methods of Physics/Gauss' Theorem

'Gauss's Divergence Theorem' Definition:
ʃ a. normal ds = ʃ div of a dv
# Mathematical Methods of Physics

Mathematical methods of Physics is a book on common techniques of applied mathematics that are often used in theoretical physics. It may be accessible to anyone with beginning undergraduate training in mathematics and physics. It is hoped that the book will be useful for anyone wishing to study advanced Physics.
Foreword

## Vector Calculus

* Vector Spaces
* Matrices
* Gradient, Curl and Divergence
* Gauss' Theorem
* Stokes' Theorem
* The Laplacian

## Complex Variables

* Analytic functions
* Cauchy's integral formula
* Residue Theorem
* Contour integration

## Fourier Analysis

* Fourier's theorem
* Fourier transforms
* Linear filters

## Hilbert Spaces

* Linear Algebra
* Riesz representation theorem
* Operators

## Green's Functions

* General theory
* Solutions of differential equations
* Applications to wave mechanics

## Sturm-Liouville Theory

* Orthogonal functions
* Bessel, Legendre polynomials
* Special functions

## Cartesian Tensors

* Coördinate transforms
* The multipole expansion
* Summation convention
* Special relativity
# Mathematical Methods of Physics/Foreword

This is a textbook of common methods of applied mathematics that are often used by physicists. Knowledge of basic calculus and analysis is assumed. Although the book covers all the linear algebra required, it is recommended that the reader have at least some previous exposure to this subject. Familiarity with topology and measure theory/functional analysis may be helpful in some of the later chapters. Exposure to introductory level physics is sufficient.
Authors are encouraged to maintain the level of mathematics as "fairly rigorous", to minimise the amount of hand-waving. Thus the reader will be at an advantage if he/she has experience with mathematical proofs.
Wikibooks that may be useful prerequisites:
Math:
* Calculus
* Real Analysis
* Linear Algebra
* Topology
* Measure Theory
Physics:
* Physics with Calculus
* Physics Exercises

## Contributors

* SPat
# Pokémon Trading Card Game/Jungle

Jungle is the second Pokémon TGC set. The set was released on June 16, 1999 in the United States and would have one additional printing. This set contains 64 different cards.
Pokémon Card List
* Celfable
* Electrode
* Flareon
* Jolteon
* Kangakhan
* Mr. Mime
* Nidoqueen
* Pidgeot
* Pinsir
* Scyther
* Snorlax
* Vaporeon
* Venomoth
* Victreebel
* Vileplume
* Wigglytuff
* Clefable
* Electrode
* Flareon
* Jolteon
* Kangaskhan
* Mr. Mime
* Nidoqueen
* Pidgeot
* Pinsir
* Scyther
* Snorlax
* Vaporeon
* Venomoth
* Victreebel
* Vileplume
* Wigglytuff
* Butterfree
* Dodrio
* Exeggutor
* Fearow
* Gloom
* Lickitung
* Marowak
* Nidorina
* Parasect
* Persian
* Primeape
* Rapidash
* Rhydon
* Seaking
* Tauros
* Weepinbell
* Bellsprout
* Cubone
* Eevee
* Exeggcute
* Goldeen
* Jigglypuff
* Mankey
* Meowth
* Nidoran(female)
* Oddish
* Paras
* Pikachu
* Rhyhorn
* Spearow
* Venonat
* Poke Ball
# Pokémon Trading Card Game/Supporter Cards

Supporter Cards:
Supporter cards help give the play an extra bonus if meeting the right conditions. It can be something as simple as drawing 2 cards or slightly healing your Pokémon. However, you are supposed to only play one supporter card per turn and before you decide to attack.
# Pokémon Trading Card Game/Pokémon-EX Cards

EX Cards:
EX cards are powerful Pokémon that have very powerful attacks but require a lot of energy cards to land an attack. There are 4 types of ex cards. They are normal, full arts, rainbow and promotional cards. However, these cards are hard to get in packs in are not too common to find. There is also a rule for ex cards for when they get knocked out. If they get knocked out then you or your opponent gets 2 prize cards.
# Pokémon Trading Card Game/Stadium Cards

Stadium Cards:
Stadium cards are used to give a player an extra bonus or special conditions. There can only be one stadium card during your play. However, you do not have to discard the stadium until you change into a new one. Also, if a stadium card is in your deck you can’t place it if you have a card that has the same as it that is in play. An example of an affect that happens is, “each Pokémon that has any fairy energy attached to it (both yours and your opponent’s) has no retreat cost” (Fairy Garden 100/124 Fates Collide).
# Policy-based Resilience Simulator with OMNeT++

* Introduction
* Basics
* Building OMNeT++
* Compiling INET
* ReaSE and XML-RPC
* Building Distack
* Patching INET and ReaSE
* Setting up Ponder
Introduction →
# Pokémon Trading Card Game/Neo Discovery

Neo Discovery is the the 9th set of the Pokémon TCG. It was released on June 1st, 2001 and had 2 printing of this set. This set has 75 cards.
The Card List:
* Espeon
* Forretress
* Hitmontop
* Houndoom
* Houndour
* Kabutops
* Magnemite
* Politoed
* Poliwrath
* Scizor
* Smeargle
* Tyranitar
* Umbreon
* Unown A
* Ursaring
* Wobbuffet
* Yanma
* Beedrill
* Butterfree
* Espeon
* Forretress
* Hitmontop
* Houndoom
* Houndour
* Kabutops
* Magnemite
* Politoed
* Poliwrath
* Scizor
* Smeargle
* Tyranitar
* Umbreon
* Unown A
* Ursaring
* Wobbuffet
* Yanma
* Corsola
* Eevee
* Houndour
* Igglybuff
* Kakuna
* Metapod
* Omastar
* Poliwhril
* Pupitar
* Scyther
* Unown D
* Unown F
* Unown M
* Unown N
* Unown U
* Xatu
* Caterpie
* Dunsparce
* Hoppip
* Kabuto
* Larvitar
* Mareep
* Natu
* Omanyte
* Pineco
* Poliwag
* Sentret
* Spinarak
* Teddiursa
* Tyrouge
* Unown E
* Unown I
* Unown O
* Weedle
* Wooper
* Fossil Egg
* Hyper Devolution Spray
* Ruin Wall
* Energy Ark