Definitions and Graphs | Identities , Equations, and Applications | Trigonometry and Complex Numbers | Calculus with Trig Functions | Supplements, OnLine Courses, and More |

You can also use our own Graph Explorer to produce the graphs of various trig functions. (Any Computer Algebra System or Graphing Calculator would do as well of course but the detailed instructions might be a bit different.)

The effect of multiplying a basic trig function by another function to give a variable amplitude or "damping" effect is discussed at this page on the "CoolMath" site which also includes a page of other links to sites dealing with trigonometry and trig functions.

Although the trig functions are not one-to-one and so do not have inverse functions, they do have invertible restrictions and these are discussed at the UBC site on Inverse Trigonometric Functions

Simple trigonometric equations are also dealt with at Trigonometric Equations, from the University of Texas El Paso's S.O.S. MATHematics site.

Eric Hiob's collection of math applications at BCIT includes several involving trigonometry:

Buffon's Needle

See The Complex Plane, Polar Form of a Complex Number : The unit circle,

and Euler's Formula from S.O.S. MATHematics.

Here's another version (of the same thing) as well as some other interesting graphics.

A different
animation of the sine function, together with its gradient and derivative,
can be seen at Calculus
Animations.

The University of Saskatchewan's "Exercises in Math Readiness" site
has these notes and exercises on Trig
Functions, Circular
Functions, Identities&Equations,
and Applications.

Simple trigonometric equations are also dealt with at Trigonometric
Equations, from the University of Texas El Paso's S.O.S.
MATHematics site.

For other online material you might try this short
course in trigonometry , or (especially in preparation for Math174)
*The
Trigonometric Functions and Calculus for Liberal Arts and Business Majors*,
a text resource written by Stefan Waner and Steven
Costenoble of Hofstra University, and OregonState's "CalculusQuest"
includes a precalculus "Field Guide" to functions which includes this
section on trig functions, which has been reviewed
by Frank Choy.

You might also check our 'raw list' (of links provided without comment)
to see if there are any

more
examples there that we haven't yet included here.

If you have come across other good web-based illustrations of trigonometry
concepts,

please do let
us know and we will add them here.

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