I came across the equations describing the rotation of a point around the origin - they claim that the new coordinates, after the rotation are as follows:
[MATH]x' = xcos(\theta) - ysin(\theta)[/MATH][MATH]y' = xsin(\theta) + ycos(\theta)[/MATH]
I sketched a circle with two vectors inside but I can't get that. How can I derive this equation?
Thanks
[MATH]x' = xcos(\theta) - ysin(\theta)[/MATH][MATH]y' = xsin(\theta) + ycos(\theta)[/MATH]
I sketched a circle with two vectors inside but I can't get that. How can I derive this equation?
Thanks