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C++ abs

Last Updated on Wednesday 5th Oct 2022

C++ absolute value

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

			
					#include <iostream>
#include <cmath>
using namespace std;

int main() {
  cout << abs(-4.4);
  return 0;
}

			
	
			
					4.4

			
	

c++ abs

Syntax of abs()

The syntax of the abs() function is:

			
					abs(double num);

			
	

abs() Parameters

The abs() function takes the num parameter.

  • A floating point number - num can be double, float, long double

absolute value c++

abs() Return

std abs

  • The absolute value of num.

cmath absolute value

			
					#include <iostream>
#include <cmath>
using namespace std;

int main() {
  double num = -44.55, res;
  res = abs(num);
  cout << "abs(" << num << ") = " << res;
  return 0;
}

			
	
			
					abs(-44.55) = 44.55

			
	

c++ math abs

			
					#include <iostream>
#include <cmath>

using namespace std;

int main() {
  int num = -44;
  double res;
  res = abs(num);
  cout << "abs(" << num << ")  = " << res;
  return 0;
}

			
	
			
					abs(-44)  = 44