gridripper::math::expr::FnCollection Class Reference

Collection of constant and function definitions. More...

List of all members.

Public Member Functions
	FnCollection (String xname, List< StkOp > stkops, List< Evaluator.Function > varlist)
	Creates a collection for the specified independent variable.
double	eval (String expr)
	Evaluates a constant expression.
void	addConst (String constname, String expr) throws IllegalArgumentException
	Adds a constant.
StkVar	getStkVar (String varname)
	Gets a stack variable.
void	addConstsAndVars (String defs) throws IllegalArgumentException
	Adds constants and dependent variables appearing in the specified string.
Evaluator.Function	addVar (String varname, String expr) throws IllegalArgumentException
	Adds a dependent variable.
Evaluator.Function	getVar (String varname)
	Gets a dependent variable.
Evaluator.Function	findVar (String name_or_def)
	Finds a dependent variable.

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Detailed Description

Collection of constant and function definitions.

Version:

12/19/2008

Since:

GridRipper 12/16/2008

Author:

Peter Csizmadia

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Constructor & Destructor Documentation

gridripper::math::expr::FnCollection::FnCollection	(	String	xname,
		List< StkOp >	stkops,
		List< Evaluator.Function >	varlist
	)			[inline]

Creates a collection for the specified independent variable.

Parameters:

	xname	the name of the independent variable
	stkops	list of constants and other stack operations
	varlist	list of dependent variables

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Member Function Documentation

double gridripper::math::expr::FnCollection::eval

(

String

expr

)

[inline]

Evaluates a constant expression.

Dependent variables should not appear in it.

Parameters:

expr

the expression

Returns:

the value

void gridripper::math::expr::FnCollection::addConst	(	String	constname,
		String	expr
	)			throws IllegalArgumentException [inline]

Adds a constant.

Parameters:

	constname	the name
	expr	the expression defining its value

StkVar gridripper::math::expr::FnCollection::getStkVar

(

String

varname

)

[inline]

Gets a stack variable.

Parameters:

varname

the name

Returns:

the stack variable or null if not found

void gridripper::math::expr::FnCollection::addConstsAndVars

(

String

defs

)

throws IllegalArgumentException [inline]

Adds constants and dependent variables appearing in the specified string.

Parameters:

defs

list of definitions, separated by semicolons

Returns:

the stack variable

Evaluator.Function gridripper::math::expr::FnCollection::addVar	(	String	varname,
		String	expr
	)			throws IllegalArgumentException [inline]

Adds a dependent variable.

Parameters:

	varname	the name
	expr	the defining expression

Returns:

the function representing the dependent variable

Evaluator.Function gridripper::math::expr::FnCollection::getVar

(

String

varname

)

[inline]

Gets a dependent variable.

Parameters:

varname

the name

Returns:

the function representing the dependent variable or null if not found

Evaluator.Function gridripper::math::expr::FnCollection::findVar

(

String

name_or_def

)

[inline]

Finds a dependent variable.

The variable can optionally be created if not found.

Parameters:

name_or_def

name or the definition to be use if the variable is not found

Returns:

the function representing the dependent variable or null if not found (and not created)

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

• gridripper/math/expr/FnCollection.java