加速运算

def fastsin(fAngle):
    fASqr = fAngle*fAngle
    fResult = 7.61e-03
    fResult *= fASqr
    fResult -= 1.6605e-01
    fResult *= fASqr
    fResult += 1.0
    fResult *= fAngle
    return fResult
print(np.sin(2*np.pi/1024))
print(fastsin(2*np.pi/1024))