angle(z, deg=False)

Notes

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

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.

versionchanged

This function works on subclasses of ndarray like :None:None:`ma.array`.

Return the angle of the complex argument.

See Also

absolute

arctan2

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

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

scipy.signal._czt.CZT dask.array.ufunc.exp numpy.imag numpy.ma.core.arctan2 numpy.real numpy.ma.core.arctan dask.array.ufunc.angle scipy.signal._signaltools.convolve2d scipy.signal._filter_design.freqz_zpk scipy.signal._filter_design.sosfreqz scipy.signal._filter_design.iirnotch skimage.restoration.unwrap.unwrap_phase scipy.signal._filter_design.bessel scipy.signal._filter_design.freqz scipy.signal._filter_design.iircomb scipy.signal._filter_design.iirdesign numpy.real_if_close scipy.signal._filter_design.iirpeak

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