Applets Illustrating Trigonometry
Prof. Scott Sutherland, Stony Brook University
Radians as a radius
The unit circle and values of sine and cosine
Geometric interpretation of trigonometric functions
The unit circle and trig graphs
Affine transformation of (some) functions
Cosine of a sum of angles
Last changed on Tue, 27 Oct 2026 at 10:43am