TriGoTan app for iPhone and iPad
4.0 (
6400 ratings )
Utilities
Education
Developer: Giovanni Bellu
0.99 USD
Current version: 2.0, last update: 6 years agoFirst release : 15 Apr 2014
App size: 10.84 Mb
Easily learn tangent and cotangent on the unit circle and look at their graphs on the Cartesian plane by changing the angle with one finger. Easily zoom the circle with two fingers.