Precalculus

Mobile Math Apps

Android Setup

iOS Setup

Getting the Apps

Applets

Visualizing Angles in Degrees - Identify the degree measure of randomly generatedd angles in standard position.

Visualizing Angles in Radians - Identify the radian measure of randomly generatedd angles in standard position.

Visualizing Coordinates on the Unit Circle - Identify coordinates of points on the unit circle corresponding to angles measuring multiples of 30˚ or 45˚.

Visualizing the Sine and Cosine Functions - See how the graphs of sine and cosine come from the unit circle.