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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"`
Include dependency graph for PFuncTest.cpp:

Go to the source code of this file.

## 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.

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

int main | ( |  | ) |

Definition at line 28 of file PFuncTest.cpp.

29 {
30 const GaudiMath::Function& myfun = GaudiMath::adapter( 2, &fun );
31 Genfun::Argument arg( myfun.dimensionality() );
32
33 std::string format( "x[0]=%6.5f x[1]=%6.5f myfun=%+.10f" );
34 format += " fun=%+.10f fun-myfun=%+.10f \n";
35 std::vector<double> x( myfun.dimensionality() );
36
37 for ( double a = 0; a < 3; ++a ) {
38 for ( double b = 0; b < 3; ++b ) {
39 arg[0] = x[0] = a;
40 arg[1] = x[1] = b;
41
42 printf( format.c_str(), x[0], x[1], myfun( arg ), fun( x ), fun( x ) - myfun( arg ) );
43 }
44 }
45 }
format
GAUDI_API std::string format(const char *,...)
MsgStream format utility "a la sprintf(...)".
Definition: MsgStream.cpp:120
GaudiMath::Function
Genfun::AbsFunction Function
Definition: GaudiMath.h:24
std::string
STL class.
std::vector< double >
GaudiMath::adapter
GAUDI_API AIDAFunction adapter(const AIDA::IFunction &function)
Definition: Adapters.cpp:25
std::string::c_str
T c_str(T...args)
fun
double fun(const std::vector< double > &x)
Definition: PFuncTest.cpp:26
std::printf
T printf(T...args)