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GenericFunctions/Theta.hh
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// -*- C++ -*-
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// $Id:
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//---------------------Theta------------------------------------------------//
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// //
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// Class Theta //
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// Joe Boudreau, Petar Maksimovic, November 1999 //
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// //
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//--------------------------------------------------------------------------//
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#ifndef Theta_h
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#define Theta_h 1
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#include "
CLHEP/GenericFunctions/AbsFunction.hh
"
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namespace
Genfun {
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class
Theta :
public
AbsFunction {
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FUNCTION_OBJECT_DEF
(
Theta
)
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public:
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// Constructor
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Theta
();
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// Destructor
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virtual ~Theta();
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// Copy constructor
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Theta(const Theta &right);
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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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// Derivative.
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Derivative
partial
(
unsigned
int
)
const
;
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// Does this function have an analytic derivative?
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virtual
bool
hasAnalyticDerivative
()
const
{
return
true
;}
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private
:
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// It is illegal to assign a Theta
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const
Theta
& operator=(
const
Theta
&right);
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};
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}
// namespace Genfun
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#endif
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