# numpy.angle

numpy.angle(z, deg=False)

  Return the angle of the complex argument.

  Parameters
    z array_like

      A complex number or sequence of complex numbers.

    deg bool, optional

      Return angle in degrees if True, radians if False (default).

  Returns
    angle ndarray or scalar

      The counterclockwise angle from the positive real axis on the complex plane in the range `(-pi, pi]`, with dtype as numpy.float64.

      Changed in version 1.16.0: This function works on subclasses of ndarray like `ma.array`.

  See also

  `arctan2`
  `absolute`

  Notes

  Although the angle of the complex number 0 is undefined, `numpy.angle(0)` returns the value 0.

  Examples

      >>> 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

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