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numpy.real — NumPy v2.4.dev0 Manual

numpy.real(val)[source]#

Return the real part of the complex argument.

Parameters:

valarray_like

Input array.

Returns:

outndarray or scalar

The real component of the complex argument. If val is real, the type of val is used for the output. If val has complex elements, the returned type is float.

Examples

>>> import numpy as np
>>> a = np.array([1+2j, 3+4j, 5+6j])
>>> a.real
array([1.,  3.,  5.])
>>> a.real = 9
>>> a
array([9.+2.j,  9.+4.j,  9.+6.j])
>>> a.real = np.array([9, 8, 7])
>>> a
array([9.+2.j,  8.+4.j,  7.+6.j])
>>> np.real(1 + 1j)
1.0

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