With static graphs and equations, it's possible to get a handle on the rules of what various functions do and mean.

Learn how to solve trigonometric equations in Higher Maths involving multiple or compound angles and the wave function in degrees or radians.

National 5 Working with trigonometric relationships in degrees Trigonometric relationships Trigonometric functions can have several solutions. Sine, cosine and tangent all have different positive ...

The graphs of sine and cosine are included as well. The three principle trigonometric functions. (Image credit: Robert J. Coolman) ...

It's essentially a calculation canvas you can use to work out equations and draw graphs, and if you know how to get the best out of it then it can be incredibly useful.