log1p

public static double log1p(double x)

The natural logarithm of one (1) plus the specified value. If the specified value is -1, the return value is negative infinity. If the specified value is less than -1, NaN is returned.

Parameters

x

A positive number or zero to evaluate with.

Returns the natural logarithm (with base e) for one (1) plus the specified value.

Mathematically, this would be represented as ln(1 + x).

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import System;   Console.log(Math.log1p(1));