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src
KroneckerDelta.cc
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// -*- C++ -*-
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// $Id: KroneckerDelta.cc,v 1.1 2007/01/21 20:54:34 boudreau Exp $
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#include "
CLHEP/GenericFunctions/KroneckerDelta.hh
"
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#include "
CLHEP/GenericFunctions/FixedConstant.hh
"
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#include <assert.h>
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namespace
Genfun {
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FUNCTION_OBJECT_IMP
(KroneckerDelta)
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KroneckerDelta
::
KroneckerDelta
()
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{}
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KroneckerDelta::KroneckerDelta
(
const
KroneckerDelta
& right)
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{
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}
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KroneckerDelta::~KroneckerDelta
() {
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}
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double
KroneckerDelta::operator()
(
double
x)
const
{
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if
(x < 0.5 && x > -0.5)
return
1;
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return
0;
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}
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Derivative
KroneckerDelta::partial
(
unsigned
int
index)
const
{
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assert(index==0);
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const
AbsFunction
& fPrime =
FixedConstant
(0);;
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return
Derivative
(&fPrime);
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}
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}
// namespace Genfun
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