*smashes head*

Sorry for being so damn unspecific. -_-'

Its C++.

Cmath worked, thanks.

And now same program, new problems.

`#include<iostream>`

#include<cmath>

using namespace std;

void series(int, int);

int main()

{

int x, n;

cout<<"\nEnter the value of x & n…\n";

cin>>x>>n;

series(x, n);

return 0;

}

void series(int x, int n)

{

int sum=1,f=1,j;

for(int i=1;i<=n;i++)

{

for(int j=1;j<=(2*n-1);j--)

f*=j;

sum+=f/pow(x,i); //Line 20

}

cout<<"\n"<<sum;

}

Line 20 - Error - Call of overloaded function 'pow(int&, int&)' is ambigous

Help please.