# include <stdio.h>

double f10 ( double x );

int main ( )
{
  double a = 0.0;
  double b = 7.0;
  double dx;
  double fx;
  double fxmin;
  int i;
  int n;
  double x;
  double xmin;

  printf ( "Enter the number of points to use: " );
  scanf ( "%i", &n );
//
//  Seek the minimum of a function between A and B using N steps.
//
  dx = ( b - a ) / ( n - 1 );

  for ( i = 0; i < n; i++ )
  {
    x = a + i * dx;
    fx = f10 ( x );

    if ( i == 0 )
    {
      xmin = x;
      fxmin = fx;
    }
    else
    {
      if ( fx < fxmin )
      {
        xmin = x;
        fxmin = fx;
      }
    }

  }
  printf ( "\n" );
  printf ( "Using %d points, the estimated minimum is f(%g) = %g\n", n, xmin, fxmin );

  return 0;
}