Java Math.log1p() method

Last Updated : 17 Mar 2025

The java.lang.Math.log1p() is used to return the natural logarithm of the sum of the arguments and 1.

Syntax

Parameter

Return

• If the argument is Positive value, this method will return the natural logarithm of a given value.
• If the argument is NaN or less than -1, this method will return NaN.
• If the argument is -1, this method will return Negative Infinity.
• If the argument is Positive Infinity, this method will return Positive Infinity.
• If the argument is positive or negative Zero, this method will return the Zero with the same sign as the argument.

Example 1

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Example 2

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Example 3

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Example 4

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Example 5

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