org.matheclipse.core.reflection.system

Class Times

java.lang.Object

org.matheclipse.core.eval.interfaces.AbstractEvaluator

org.matheclipse.core.eval.interfaces.AbstractFunctionEvaluator

org.matheclipse.core.eval.interfaces.AbstractArg2

org.matheclipse.core.eval.interfaces.AbstractArgMultiple

org.matheclipse.core.reflection.system.Times

All Implemented Interfaces:

IFunctionEvaluator, INumeric, IEvaluator

public class Times
extends AbstractArgMultiple
implements INumeric

Field Summary

Fields

Modifier and Type	Field and Description
static Times	CONST Constructor for the singleton

Constructor Summary

Constructors

Constructor and Description
Times()

Method Summary

Modifier and Type	Method and Description
IExpr	e2ComArg(IComplex c0, IComplex c1)
IExpr	e2DblArg(INum d0, INum d1)
IExpr	e2DblComArg(IComplexNum d0, IComplexNum d1)
IExpr	e2FraArg(IFraction f0, IFraction f1)
IExpr	e2IntArg(IInteger i0, IInteger i1)
IExpr	e2ObjArg(IExpr o0, IExpr o1) Evaluate the function for the 2 given expressions.
IExpr	eComIntArg(IComplex c0, IInteger i1)
double	evalReal(double[] stack, int top, int size) Evaluate the function to a double number
IExpr	evaluate(IAST ast, EvalEngine engine) Symbolic evaluation of a function.
HashedOrderlessMatcher	getHashRuleMap()
void	setUp(ISymbol symbol) Evaluate built-in rules and define Attributes for a function.

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

binaryOperator, defineHashRule, evaluateHashs, setUpHashRule, setUpHashRule, setUpHashRule2

Methods inherited from class org.matheclipse.core.eval.interfaces.AbstractArg2

e2ApcomplexArg, e2ApfloatArg, e2FunArg, e2SymArg, eComFraArg, eFunIntArg

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

createRuleFromMethod, getNormalizedNegativeExpression, getNormalizedNegativeExpression, getPeriodicParts, getPureImaginaryPart, getRuleAST, initSerializedRules, isNegativeExpression

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

numericEval

Methods inherited from class java.lang.Object

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

Field Detail

CONST

public static final Times CONST

Constructor for the singleton

Constructor Detail

Times

public Times()

Method Detail

getHashRuleMap

public HashedOrderlessMatcher getHashRuleMap()

Overrides:

getHashRuleMap in class AbstractArgMultiple

e2ComArg

public IExpr e2ComArg(IComplex c0,
                      IComplex c1)

Overrides:

e2ComArg in class AbstractArg2

e2DblArg

public IExpr e2DblArg(INum d0,
                      INum d1)

Overrides:

e2DblArg in class AbstractArg2

e2DblComArg

public IExpr e2DblComArg(IComplexNum d0,
                         IComplexNum d1)

Overrides:

e2DblComArg in class AbstractArg2

e2FraArg

public IExpr e2FraArg(IFraction f0,
                      IFraction f1)

Overrides:

e2FraArg in class AbstractArg2

e2IntArg

public IExpr e2IntArg(IInteger i0,
                      IInteger i1)

Specified by:

e2IntArg in class AbstractArgMultiple

e2ObjArg

public IExpr e2ObjArg(IExpr o0,
                      IExpr o1)

Description copied from class: AbstractArg2

Evaluate the function for the 2 given expressions.

Overrides:

e2ObjArg in class AbstractArg2

Returns:

F#NIL if no evaluation is possible.

eComIntArg

public IExpr eComIntArg(IComplex c0,
                        IInteger i1)

Overrides:

eComIntArg in class AbstractArg2

evaluate

public IExpr evaluate(IAST ast,
                      EvalEngine engine)

Description copied from class: AbstractFunctionEvaluator

Symbolic evaluation of a function. ast.get(0) (or alternatively ast.head()) contains the head (i.e. the function symbol) of this abstract syntax tree (AST).
From ast.arg1() to ast.get(n) the ast contains the first to n-th argument of the function (alternatively you get the first to fifth argument with the methods arg1(), arg2(),... arg5()).
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 AbstractArgMultiple

Parameters:

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

engine - the users current evaluation engine

Returns:

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

See Also:

Validate, IExpr.head(), IAST.arg1(), IAST.arg2(), IAST.arg3()

setUp

public void setUp(ISymbol symbol)

Description copied from class: AbstractFunctionEvaluator

Evaluate built-in rules and define Attributes for a function.

Specified by:

setUp in interface IEvaluator

Overrides:

setUp in class AbstractFunctionEvaluator

Parameters:

symbol - the symbol which should be set up

evalReal

public double evalReal(double[] stack,
                       int top,
                       int size)

Description copied from interface: INumeric

Evaluate the function to a double number

Specified by:

evalReal in interface INumeric

Returns:

See Also:

DoubleStackEvaluator