Drawing charts in JS?

Question

JavaScript

It is necessary to display a graph of cosine and sine using the arc method, while being able to choose what exactly needs to be displayed (press the sin button - it shows sin).

Answer 1

Bring it out, of course, if necessary.
Any charting library will help you with this. I like morris.js

Answer 2

see html5 canvas function graphs
.arc()
Javascript arc() method