Hi Everyone,

I am trying to compile a code and I keep getting error C2064: term does not evaluate to a function taking 1 arguments

here is my code(actually I got it from a book),can anyone help me what is wrong?

thanks

Negin

```
#include <iostream>
#include <math.h>
using namespace std;
class tridiagonal
{
private:
int i,n;
double *x,*a,*b,*c,*beta,*gamma,*r;
public:
void input ();
void solution ();
~tridiagonal ()
{
delete [] x,a,b,c,beta,gamma,r;
}
};
void main()
{
tridiagonal matrix;
matrix.input ();
matrix.solution ();
}
void tridiagonal :: input()
{
cout<<"Enter number of equations:\n";
cin >>n;
a=new double[n-1];
b=new double[n];
c=new double [n-1];
beta=new double[n];
gamma=new double [n];
r=new double [n];
x=new double [n];
for (i=0; i<n; i++)
{ cout<<"Enter b["<<i<<"]=" ;cin>> b[i];}
for (i=0; i<(n-1); i++)
{ cout<<"Enter c["<<i<<"]=" ;cin>> c[i];}
for (i=1; i<n; i++)
{ cout<<"Enter a["<<i<<"]=" ;cin>> a[i-1];}
for (i=0; i<n; i++)
{ cout<<"Enter r["<<i<<"]=" ;cin>>r[i];}
}
void tridiagonal :: solution()
{
for (i=0; i<n; i++)
{
if (i==0)
{
beta[0]=b[0];
gamma [0] = r[0]/beta[0];
}
else
{
beta[i]=b[i]-a[i-1]*c[i-1]/beta[i-1];
gamma[i]=(r[i]-a[i-1]*gamma[i-1])/beta[i];
}
}
x(n-1)=gamma(n-1);
for (i=(n-2); i>=0 ; i--)
{ x[i]=gamma[i]-c[i]*x[i+1]/beta[i]; }
for (i=0; i<n ; i++)
{ cout<<"x["<<i<<"]="<<x[i]<<".\n";}
}
```