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norm() function in C++ with Examples
In this article we will be discussing the working, syntax and examples of norm() function in C++ STL.
What is norm()?
norm() function is an inbuilt function in C++ STL, which is defined in <complex> header file. norm() function is used to get the norm value of a complex number.
Norm value of a complex number is the squared magnitude of a number. So in simple words the function finds the squared magnitude of a complex number, including its imaginary and real number.
Syntax
double norm(ArithmeticType num);
Parameters
The function accepts following parameter(s) −
- num − The complex value which we want to work on.
Return value
This function returns a norm value of num.
Example
Input
complex<double> comp_num(6.9, 2.6); norm(comp_num);
Output
The value of norm of (6.9,2.6) is 54.37
Example
#include <bits/stdc++.h>
using namespace std;
int main (){
complex<double> comp_num(6.9, 2.6);
cout<<"The value of norm of " << comp_num<< " is ";
cout << norm(comp_num) << endl;
return 0;
}Output
The value of norm of (6.9,2.6) is 54.37
Example
#include <bits/stdc++.h>
using namespace std;
int main (){
complex<double> comp_num(2.4, 1.9);
cout<<"The value of norm of " << comp_num<< " is ";
cout << norm(comp_num) << endl;
return 0;
}Example
The value of norm of (2.4,1.9) is 9.37
Updated on: 17-Apr-2020
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