What's New
New design
IPhone X Optimization
App Description
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.
iPhone Screenshots
(click to enlarge)
iPad Screenshots
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App Changes
- June 08, 2014 Initial release
- June 14, 2019 New version 2.0
- June 14, 2019 Price decrease: $1.99 -> $0.99
- June 16, 2019 Price decrease: $1.99 -> $0.99
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