Return the angle of the complex argument.
A complex number or sequence of complex numbers.
Return angle in degrees if True, radians if False (default).
The counterclockwise angle from the positive real axis on the complex plane in the range (-pi, pi], with dtype as numpy.float64.
Notes
This function passes the imaginary and real parts of the argument to arctan2 to compute the result; consequently, it follows the convention of arctan2 when the magnitude of the argument is zero. See example.
Examples
>>> import numpy as np >>> np.angle([1.0, 1.0j, 1+1j]) # in radians array([ 0. , 1.57079633, 0.78539816]) # may vary >>> np.angle(1+1j, deg=True) # in degrees 45.0 >>> np.angle([0., -0., complex(0., -0.), complex(-0., -0.)]) # convention array([ 0. , 3.14159265, -0. , -3.14159265])
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