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    Computes the natural logarithm of (x + 1) in the neighborhood of zero.

    Syntax

    c = log1p(a)

    Inputs

    a

    Scalar or array of any dimension of floating point or complex numbers.

    Outputs

    c

    (x+1) logarithm of the elements in a. c returns complex numbers for complex elements in a or if a is less than -1. c is an array of the same size as a.