sqrt(x)
For negative input elements, a complex value is returned (unlike :None:None:`numpy.sqrt` which returns NaN).
The input value(s).
The square root of x. If x was a scalar, so is :None:None:`out`, otherwise an array is returned.
Compute the square root of x.
For real, non-negative inputs this works just like :None:None:`numpy.sqrt`:
>>> np.emath.sqrt(1) 1.0
>>> np.emath.sqrt([1, 4]) array([1., 2.])
But it automatically handles negative inputs:
>>> np.emath.sqrt(-1) 1j
>>> np.emath.sqrt([-1,4]) array([0.+1.j, 2.+0.j])See :
The following pages refer to to this document either explicitly or contain code examples using this.
numpy.ma.core.sqrt
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