Question

How to use fabs() function to get the absolute value of a floating point value N in C++

Answer 1

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
	cout << "fabs(-1.1) = " << fabs(-1.1) << endl;
	cout << "fabs(1.1) = " << fabs(1.1) << endl;
	cout << "fabs(0) = " << fabs(0) << endl;
	cout << "fabs(-0) = " << fabs(-0) << endl;	
	cout << "fabs(-0.5) = " << fabs(-0.5) << endl;
	cout << "fabs(-INFINITY) = " << fabs(-INFINITY) << endl;

	return 0;
}

// inf - Numerical result out of range

/*
run:

fabs(-1.1) = 1.1
fabs(1.1) = 1.1
fabs(0) = 0
fabs(-0) = 0
fabs(-0.5) = 0.5
fabs(-INFINITY) = inf

*/

 

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