C++ abs()

The abs() function returns the absolute value of the argument.

Syntax

abs(n)

Example 1

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

#include <iostream>
#include <cmath>

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

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Codebyte Example

The following example is runnable and outputs the absolute value of -5.1:

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