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InterpTest.cpp
Go to the documentation of this file.
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// $Id: Interp.cpp,v 1.3 2006/12/08 12:15:24 hmd Exp $
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// ============================================================================
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// Include files
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// ============================================================================
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// STD& STL
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// ============================================================================
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#include <cmath>
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#include <iostream>
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#include <cstdio>
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#include "GaudiKernel/SystemOfUnits.h"
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#include "GaudiMath/GaudiMath.h"
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// ============================================================================
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// ============================================================================
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int
main
()
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{
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const
GaudiMath::Function
& mysin =
GaudiMath::SimpleFun
( sin );
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const
GaudiMath::Function
& mycos =
GaudiMath::SimpleFun
( cos );
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std::vector<double> vctx ;
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std::vector<double> vcty ;
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for
(
int
i
= 0 ;
i
< 20 ; ++
i
)
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{
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double
x =
i
* 3.141592/20.0 ;
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double
y = mysin ( x ) ;
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vctx.push_back ( x ) ;
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vcty.push_back ( y ) ;
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}
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using
GaudiMath::Interpolation::Cspline_Periodic
;
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const
GaudiMath::Constant
minusOne (-1.0, 1);
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const
GaudiMath::Constant
plusOne (1.0, 1);
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const
GaudiMath::Spline
i1(vctx, vcty,
Cspline_Periodic
);
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const
GaudiMath::SplineDeriv
i2(vctx, vcty,
Cspline_Periodic
);
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const
GaudiMath::Function
& i3 =
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GaudiMath::SplineDeriv2
(vctx, vcty,
Cspline_Periodic
) * minusOne;
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const
GaudiMath::Function
& i4 = plusOne +
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GaudiMath::SplineInteg
(vctx, vcty,
Cspline_Periodic
, 0.0) * minusOne;
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for
(
int
i
= -10 ;
i
< 30 ; ++
i
) {
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double
x =
i
* 3.141592/30.0 ;
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printf(
"x=%+7.1f; Sin-i1=%+14.9f; Cos-i2=%+14.9f; Sin-i3=%+14.9f; Cos-i4=%+14.9f;\n"
,
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x / Gaudi::Units::degree,
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mysin ( x ) - i1( x ),
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mycos ( x ) - i2( x ),
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mysin ( x ) - i3( x ),
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mycos ( x ) - i4( x ));
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}
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exit(0);
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}
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GaudiGSL
src
Tests
InterpTest.cpp
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1.8.2