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logn(n, x)

If x contains negative inputs, the answer is computed and returned in the complex domain.

Parameters

n : array_like

The integer base(s) in which the log is taken.

x : array_like

The value(s) whose log base n is (are) required.

Returns

out : ndarray or scalar

The log base n of the x value(s). If x was a scalar, so is :None:None:`out`, otherwise an array is returned.

Take log base n of x.

Examples

>>> np.set_printoptions(precision=4)
>>> np.emath.logn(2, [4, 8])
array([2., 3.])
>>> np.emath.logn(2, [-4, -8, 8])
array([2.+4.5324j, 3.+4.5324j, 3.+0.j    ])
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GitHub : /numpy/lib/scimath.py#344
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