def lab_to_lch(l, a, b, *rest): h = _wrap_lch_h(arctan2(b, a), 2. * pi) h /= 2. * pi # MMA specific return (l, sqrt(a * a + b * b), h) + rest
def testSqrt(self): self.assertEqualArrays(sqrt([[9, 100], [25, 16]]), [[3, 10], [5, 4]])