numpy.lib.scimath.logn
- lib.scimath. logn ( n, x ) [source]
-
Take log base n of 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 thex
value(s). Ifx
was a scalar, so isout
, otherwise an array is returned.
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 ])
© 2005–2021 NumPy Developers
Licensed under the 3-clause BSD License.
https://numpy.org/doc/1.22/reference/generated/numpy.lib.scimath.logn.html