org.matheclipse.core.reflection.system

Class Product

java.lang.Object

org.matheclipse.core.eval.interfaces.AbstractFunctionEvaluator

org.matheclipse.core.reflection.system.Table

org.matheclipse.core.reflection.system.Product

All Implemented Interfaces:

IFunctionEvaluator, IEvaluator

public class Product
extends Table

Product of expressions. See Wikipedia Multiplication

Constructor Summary

Constructors

Constructor and Description
Product()

Method Summary

Modifier and Type	Method and Description
IExpr	evaluate(IAST ast) Symbolic evaluation of a function.
IAST	getRuleAST() Get the predefined rules for this function symbol.

Methods inherited from class org.matheclipse.core.reflection.system.Table

numericEval, setUp

Methods inherited from class org.matheclipse.core.eval.interfaces.AbstractFunctionEvaluator

createRuleFromMethod, getPeriodicParts, getPureImaginaryPart, isNegativeExpression

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Product

public Product()

Method Detail

getRuleAST

public IAST getRuleAST()

Description copied from class: AbstractFunctionEvaluator

Get the predefined rules for this function symbol. If no rules are available return null.

Overrides:

getRuleAST in class AbstractFunctionEvaluator

Returns:

evaluate

public IExpr evaluate(IAST ast)

Description copied from class: AbstractFunctionEvaluator

Symbolic evaluation of a function. ast.get(0) contains the head (i.e. the function symbol) of this abstract syntax tree (AST). ast.get(1) to ast.get(n) contains the first to n-th argument of the function.
If necessary use the methods from the Validate class to check the number or types of arguments in the evaluate method.
Note: if the symbolic evaluation isn't possible or no result is found the evaluate method returns with a null value without throwing an exception!

Specified by:

evaluate in interface IFunctionEvaluator

Overrides:

evaluate in class Table

Parameters:

ast - the abstract syntax tree (AST) which should be evaluated

Returns:

the evaluated object or null, if evaluation isn't possible

See Also:

Validate