C++ <cmath> - erf() Function
The C++ <cmath> erf() function returns the error function of the argument. The error function of x is defined as:
Error functions usually occur in probability, statistics and partial differential equation describing diffusion.
Syntax
double erf (double x); float erf (float x); long double erf (long double x); double erf (T x);
Parameters
x |
Specify the value. |
Return Value
Returns the error function of the argument.
Example:
In the example below, erf() function returns the error function of the given value.
#include <iostream>
#include <cmath>
using namespace std;
int main (){
cout<<erf(0)<<"\n";
cout<<erf(1)<<"\n";
cout<<erf(2)<<"\n";
cout<<erf(-1)<<"\n";
cout<<erf(-2)<<"\n";
return 0;
}
The output of the above code will be:
0 0.842701 0.995322 -0.842701 -0.995322
❮ C++ <cmath> Library
