ExpScalarFunction Class Reference

#include <ScalarFunctionsImpl.h>

Inheritance diagram for ExpScalarFunction:

Collaboration diagram for ExpScalarFunction:

Public Member Functions
	ExpScalarFunction (const doublereal &ml, const doublereal &b, const doublereal &c)
virtual	~ExpScalarFunction (void)
virtual doublereal	operator() (const doublereal x) const
virtual doublereal	ComputeDiff (const doublereal t, const integer order=1) const
Public Member Functions inherited from DifferentiableScalarFunction
virtual	~DifferentiableScalarFunction ()
Public Member Functions inherited from BasicScalarFunction
virtual	~BasicScalarFunction ()

Private Attributes
const doublereal	mul
const doublereal	base
const doublereal	coef_input
doublereal	coef_const

Detailed Description

Definition at line 106 of file ScalarFunctionsImpl.h.

Constructor & Destructor Documentation

ExpScalarFunction::ExpScalarFunction	(	const doublereal &	ml,
		const doublereal &	b,
		const doublereal &	c
	)

Definition at line 377 of file ScalarFunctionsImpl.cc.

References base, coef_const, and grad::log().

: mul(ml), base(b), coef_input(c), coef_const(c)
{
        if (base != 1.) {
                coef_const *= log(b);
        }
}

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ExpScalarFunction::~ExpScalarFunction ( void  )

virtual

Definition at line 388 of file ScalarFunctionsImpl.cc.

References NO_OP.

{
        NO_OP;
}

Member Function Documentation

doublereal ExpScalarFunction::ComputeDiff ( const doublereal  t, const integer  order = 1  ) const

virtual

Implements DifferentiableScalarFunction.

Definition at line 400 of file ScalarFunctionsImpl.cc.

References ASSERTMSGBREAK, coef_input, operator()(), and order.

{
        ASSERTMSGBREAK(order >= 0, "Error in ExpScalarFunction::ComputeDiff, order<0");

        /*
         *

 d^i                                                                mul_const
 ---  ( mul * log( coef * x ) ) = - ( -1 ) ^ i * ( i - 1 )! * ---------
 dx^i                                                                  x^i

         *
         */

        doublereal d = 1.;
        for (int i = 0; i < order; i++) {
                d *= coef_input;
        }

        return d * this->operator()(x);
}

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doublereal ExpScalarFunction::operator() ( const doublereal  x ) const

virtual

Implements DifferentiableScalarFunction.

Definition at line 394 of file ScalarFunctionsImpl.cc.

References coef_const, grad::exp(), and mul.

Referenced by ComputeDiff().

{
        return exp(coef_const*x)*mul;
}

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Member Data Documentation

const doublereal ExpScalarFunction::base

private

Definition at line 109 of file ScalarFunctionsImpl.h.

Referenced by ExpScalarFunction().

doublereal ExpScalarFunction::coef_const

private

Definition at line 111 of file ScalarFunctionsImpl.h.

Referenced by ExpScalarFunction(), and operator()().

const doublereal ExpScalarFunction::coef_input

private

Definition at line 110 of file ScalarFunctionsImpl.h.

Referenced by ComputeDiff().

const doublereal ExpScalarFunction::mul

private

Definition at line 108 of file ScalarFunctionsImpl.h.

Referenced by operator()().

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The documentation for this class was generated from the following files:

• ScalarFunctionsImpl.h
• ScalarFunctionsImpl.cc