PFuncTest.cpp File Reference

Test file for the class AdapterPFunction. More...

#include <math.h>
#include <stdio.h>
#include <vector>
#include "GaudiMath/GaudiMath.h"
#include "GaudiMath/Adapters.h"

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Functions
double	fun (const std::vector< double > &x)
int	main ()

Detailed Description

Test file for the class AdapterPFunction.

Date

2003-09-03

Author

Kirill Miklyaev kiril.nosp@m.lm@i.nosp@m.ris1..nosp@m.itep.nosp@m..ru

Definition in file PFuncTest.cpp.

Function Documentation

double fun

(

const std::vector< double > &

x

)

Definition at line 27 of file PFuncTest.cpp.

{
  return 3 * x[0] * x[0] + 5 * x[1] * x[1] + 8;  
}

int main

(

)

Definition at line 32 of file PFuncTest.cpp.

{
  const GaudiMath::Function& myfun = GaudiMath::adapter( 2 , &fun ) ;
  Genfun::Argument arg(myfun.dimensionality());
  
  std::string format( "x[0]=%6.5f x[1]=%6.5f myfun=%+.10f");
  format +=" fun=%+.10f fun-myfun=%+.10f \n" ;
  std::vector<double> x = 
    std::vector<double>(myfun.dimensionality());

  for ( double a = 0; a < 3; ++a)
    {
      for (double b = 0; b < 3; ++b)
        {
          arg[0] = x[0] = a;
          arg[1] = x[1] = b;
          
          printf ( format.c_str() ,
                   x[0], x[1], myfun(arg), fun(x), 
                   fun(x) - myfun(arg) );
        }
    }
  
  exit(0);
  
}