org.matheclipse.core.builtin.constant

Class E

java.lang.Object

org.matheclipse.core.eval.interfaces.AbstractSymbolEvaluator

org.matheclipse.core.builtin.constant.E

All Implemented Interfaces:

ISignedNumberConstant, ISymbolEvaluator, IEvaluator

public class E
extends AbstractSymbolEvaluator
implements ISignedNumberConstant

Euler's constant E See: Wikipedia - Exponential function

Constructor Summary

Constructors

Constructor and Description
E()

Method Summary

Modifier and Type	Method and Description
IExpr	apfloatEval(ISymbol symbol, EvalEngine engine) Numerical evaluation of a symbol
double	evalReal() Evaluate the symbol to a double number
IExpr	numericEval(ISymbol symbol) Numerical evaluation of a symbol
void	setUp(ISymbol symbol) This method will be called every time a new ISymbol will be created.

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

evaluate

Methods inherited from class java.lang.Object

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

Constructor Detail

E

public E()

Method Detail

setUp

public void setUp(ISymbol symbol)

Description copied from interface: IEvaluator

This method will be called every time a new ISymbol will be created. In this method you can set ISymbol attributes or constants for the symbol

Specified by:

setUp in interface IEvaluator

Overrides:

setUp in class AbstractSymbolEvaluator

Parameters:

symbol - the symbol which should be set up

numericEval

public IExpr numericEval(ISymbol symbol)

Description copied from interface: ISymbolEvaluator

Numerical evaluation of a symbol

Specified by:

numericEval in interface ISymbolEvaluator

Overrides:

numericEval in class AbstractSymbolEvaluator

Parameters:

symbol - the symbol which should be evaluated

Returns:

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

apfloatEval

public IExpr apfloatEval(ISymbol symbol,
                         EvalEngine engine)

Description copied from interface: ISymbolEvaluator

Numerical evaluation of a symbol

Specified by:

apfloatEval in interface ISymbolEvaluator

Overrides:

apfloatEval in class AbstractSymbolEvaluator

Parameters:

symbol - the symbol which should be evaluated

engine - TODO

Returns:

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

evalReal

public double evalReal()

Description copied from interface: ISignedNumberConstant

Evaluate the symbol to a double number

Specified by:

evalReal in interface ISignedNumberConstant

Returns:

See Also:

DoubleStackEvaluator