fabs()

The fabs function returns the absolute value of the floating point argument.

Syntax

std:fabs(n)

Example 1

Use fabs() to return the absolute value of -6.5:

#include <iostream>
#include <cmath>

int main() {
  std::cout << std::fabs(-6.5) << "\n";
  // Output: 6.5
}

Codebyte Example

The following code example returns the absolute value of a decimal with the fabs() method.

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