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