#include "StatTools/Funct/FunctManip.h"
#include "StatTools/Funct/Function.h"
#include "StatTools/Funct/Math.h"
#include <iostream>
using namespace std;
using namespace Funct;

int main()
{
  double xval, yval;
  X x( xval );
  Y y( yval );

  Expression gf( sin( x ) + cos( x ) );
  xval = M_PI;
  x = M_PI;
  cout << gf << " | [ x = pi ] = " << gf() << endl;

  Function< X > f( sin( x ) + cos( x ) ); 
  Function< X, Y > g( sin( x ) + cos( y ) ); 

  cout << f << " | [ x = pi ] = " << f( M_PI ) << endl;
  cout << g << " | [ x = pi, y = pi ] = " << g( M_PI / 2, 0 ) << endl;

  return 0;
}