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Java Math.signum() method

The java.lang.Math.signum () is used to find the sign of a given value.

Syntax

Parameter

Return

  • If the argument is positive or negative Zero, this method will return Zero.
  • If the argument is positive value, this method will return Positive 1.
  • If the argument is Negative value, this method will return Negative 1.
  • If the argument is NaN, this method will return NaN.

Example 1

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Output:

1.0

Example 2

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Output:

-1.0

Example 3

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Output:

0.0

Example 4

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Output:

NaN

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