Created
February 16, 2010 15:06
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| from math import cos, sin, pi | |
| def rotate(pos, theta): | |
| x,y = pos | |
| c = cos(theta) | |
| s = sin(theta) | |
| return (x*c + y*s, x*s - y*c) | |
| # example | |
| # rotate((1,0), pi/4) | |
| # (0.70710678118654757, 0.70710678118654746) |
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