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GenericFunctions/SphericalBessel.hh
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// -*- C++ -*-
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// $Id: SphericalBessel.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
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//---------------------SphericalBessel--------------------------------------//
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// //
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// Class SphericalBessel. An spherical bessel function of integral order //
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// Joe Boudreau, Petar Maksimovic, January 2000 //
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// //
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//--------------------------------------------------------------------------//
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#ifndef SphericalBessel_h
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#define SphericalBessel_h 1
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#include "
CLHEP/GenericFunctions/AbsFunction.hh
"
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#include "
CLHEP/GenericFunctions/Parameter.hh
"
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namespace
Genfun {
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class
SphericalBessel :
public
AbsFunction {
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FUNCTION_OBJECT_DEF
(
SphericalBessel
)
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public:
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// Constructor
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SphericalBessel
(
unsigned
int
l
);
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// Copy constructor
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SphericalBessel
(const
SphericalBessel
&right);
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// Destructor
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virtual ~
SphericalBessel
();
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// Retreive function value
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virtual
double
operator ()(
double
argument) const;
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virtual
double
operator ()(const
Argument
&
a
)
const
{
return
operator()
(a[0]);}
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// Get the integer variable l
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unsigned
int
l
()
const
;
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private
:
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// It is illegal to assign a spherical bessel
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const
SphericalBessel
& operator=(
const
SphericalBessel
&right);
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// Here is the index
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unsigned
int
_l;
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};
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}
// namespace Genfun
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#include "CLHEP/GenericFunctions/SphericalBessel.icc"
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#endif
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