If you don't feel comfortable with donations you can still support the channel by purchasing one of my useful everyday life tools. This app calculates trigonometric values on your smartphone.

To celebrate the launch of this app you can get it for free until May 12th, 2020 on Google Play!

Get trigonometric values easily by tapping on the screen.

Use the reference table to quickly compare special angles and formulas.

Change the language with one click.

More information

Status	Released
Category	Tool
Platforms	HTML5
Author	Albert
Tags	cosine, everyday-life, low-price, sine, tangent, tools, trigonometry, unit-circle

Unit Circle (Android App)

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