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
- narray_like
The integer base(s) in which the log is taken.
- xarray_like
The value(s) whose log base n is (are) required.
- Returns
- outndarray or scalar
The log base n of the x value(s). If x was a scalar, so is out, 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 ])