Sunday 31 January 2016

javascript - Why does Math.cos(90 * Math.PI/180) yield 6.123031769111... and not zero?

I convert degrees to radians (degrees * Math.PI/180) but why does the following:



Math.cos(90 * Math.PI/180)


yield 6.123031769111... and not zero?




I'm trying to perform 2D rotations uses matrixes and the results are completely out of whack.

No comments:

Post a Comment

c++ - Does curly brackets matter for empty constructor?

Those brackets declare an empty, inline constructor. In that case, with them, the constructor does exist, it merely does nothing more than t...