The unit circle is visualized and explained with calculation steps, diagrams and animations. Enter the radian or the angle α to calculate the results.

Negative values, decimals, fractions and π are supported. The solution is displayed step by step. All calculations are saved in the history. The solution can be shared.

[ Contents]
- all important quantities for the unit circle
- results are also calculated as π-value
- animation to show the angle α
- diagrams for sine and cosine
- history function to save the input
- detailed solution
- negative values, decimal numbers, fractions and π are supported
- no ads!

[ Usage ]
- there are fields for entering values using a special keyboard
- press the check mark button at the bottom right to start the calculation
- if values are missing, all fields will be marked orange
- if the values are wrong, the affected field will be highlighted red
- the entries in the history can be deleted or sorted
- if you select an entry in the history, it will be automatically loaded for the calculation
- the whole history can be deleted by pressing a button
- solutions can be shared