See inside to look at the code, not much to do from here. Scratch's built-in sin(x) function is not used
This project uses the 7/6 pade approximant for sinx to approximate with great accuracy the sine of any angle in radians. I have extended it to cover the entire input range of the sin function (-infinity, infinity), not just the (-pi/2, pi/2) range that the approximant is usually used for. Thanks to wolfram alpha for the approximant values, I guess