PFuncTest.cpp File Reference

Test file for the class AdapterPFunction. More...

#include <cmath>
#include <cstdio>
#include <vector>
#include "GaudiMath/Adapters.h"
#include "GaudiMath/GaudiMath.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 26 of file PFuncTest.cpp.

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

int main

(

)

Definition at line 28 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( 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 ) );
    }
  }
}