This explains the behavior of the basic sine, cosine and tangent function. You can modify the amplitude and the frequency of the function. In addition you can enter an x value or a periodical step for the solution you require. The app shows every important calculation, provides an info image and displays the graph.

Decimals, fractions, negative values and π are supported. The solution is shown step by step. All calculations are stored in the history. The final solution can be shared.

[ Contents ]
- all important quantities for sine, cosine and tangent
- domain of definition, range of values, periodical length, maximum, minimum, zeros and pole of the functions
- proof of symmetry and periodical behavior of the functions
- results are also calculated as π-value
- diagrams for sine, cosine and tangent
- 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, the app will use default values
- 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