[DOC] [TLE] Trigonometry - Wikipedia [PAR] Trigonometry is a branch of mathematics that studies relationships involving 
lengths and ... Trigonometry is most simply associated with planar right-angle 
triangles (each of ... printed detailed trigonometric tables (Ptolemy's table of 
chords) in Book 1, ... Ptolemy used chord length to define his trigonometric 
functions, a minor... [DOC] [TLE] Phi - Wikipedia [PAR] Phi is the 21st letter of the Greek alphabet. In Ancient Greek, it represented an 
aspirated ... The lower-case letter  (or often its variant, ) is often used to 
represent the ... The convention in physics is to use phi as the azimuthal angle (
from the ... This goes for the "Didot" (or "apla") typefaces employed in most Greek 
book... [DOC] [TLE] Trigonometry - mecmath [PAR] Jul 1, 2009 ... This book covers elementary trigonometry. .... Instead of using the angle notation 
ZA to denote an angle, we will sometimes use just ... common to use letters (
either uppercase or lowercase) from the Greek alphabet, shown in. [DOC] [TLE] Defining Trig Functions - dummies [PAR] Related Book ... These six different answers represent the six trig functions. ... 
commonly refer to the angle names and their measures with Greek letters. The 
most commonly used letters for angle measures are  (alpha),  (beta),  (gamma
),... [DOC] [TLE] Trigonometry notes - Iowa State University [PAR] 2.6 Angle sum in triangles . ..... book of trigonometry (note there are several 
inexpensive problem books .... a square box to denote angles with a measure of 
90). ... Traditionally in mathematics we use letters from the Greek alphabet to 
denote. [DOC] [TLE] Greek Letters and Their Names - Purplemath [PAR] A listing of Greek lower-case letters, along with spellings and pronunciations. ... 
are working with geometry and trigonometry, you will see a lot of Greek letters. ... 
The Greek letters you are most likely to see for angles are  (alpha),  (beta),  (
gamma),  (delta), and  (theta). And of course you'll be using  (pi) all the time. [DOC] [TLE] Maths - Trigonometry Functions - Martin Baker - EuclideanSpace [PAR] The angle being considered is usually denoted by the greek letter theta: . ... We 
started with right angled triangles but we can also use trig functions for other... [DOC] [TLE] trigonometry | Britannica.com [PAR] Apr 18, 2016 ... There are six functions of an angle commonly used in trigonometry. ... The word 
trigonometry comes from the Greek words trigonon (triangle) and metron (to 
measure). ... This is essentially a table of sines, which can be seen by denoting 
... The first definition of a spherical triangle is contained in Book 1 of... [DOC] [TLE] Mathwords: Index for Trigonometry [PAR] ... circle trig. Includes material about trig functions, their inverses, and trig 
identities. Alpha ( )  Amplitude  Angle of Depression ... Greek Alphabet  Half 
Angle... [DOC] [TLE] Why is theta used to represent an unknown angle? Was this just ... [PAR] It's part of mathematical culture. You can say of all culture that "it was someone's 
arbitrary ... In the case of angles, I think people turned to Greek letters because 
they .... How can one use trigonometric identities to show that 1/ (cis (theta)) = cis 
.... Being an idea machine (see book: Become an Idea Machine: Amazon.com:... [DOC] [TLE] Trigonometry Primer \ Processing.org [PAR] In the polar system, you use radians to measure angles, instead of degrees. The 
angle of rotation in radians is commonly referred to as  (the Greek letter theta). [DOC] [TLE] Chapter 3. Oscillation - The Nature of Code [PAR] Trig will teach us about the sine and cosine functions, which when used properly 
... also pave the way for more advanced examples that require trig later in this 
book. ..... Figure 3.8: The Greek letter  (theta) is often used to denote an angle. [DOC] [TLE] Trigonometry/Conventions - Wikibooks, open

Question: Trig books use this Greek letter to denote angle
Answer: theta