numpy.angle
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numpy.angle(z, deg=False)
[source] -
Return the angle of the complex argument.
- Parameters
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zarray_like
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A complex number or sequence of complex numbers.
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degbool, optional
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Return angle in degrees if True, radians if False (default).
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- Returns
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anglendarray or scalar
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The counterclockwise angle from the positive real axis on the complex plane in the range
(-pi, pi]
, with dtype as numpy.float64.- ..versionchanged:: 1.16.0
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This function works on subclasses of ndarray like
ma.array
.
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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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https://numpy.org/doc/1.19/reference/generated/numpy.angle.html