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# numpy.lib.scimath.logn

lib.scimath.logn(n, x)

  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 the x value(s). If x was a scalar, so is out, otherwise an array is returned.

  Examples

      >>> import numpy as np
      >>> 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    ])