org.matheclipse.core.builtin.constant

Class Pi

java.lang.Object

org.matheclipse.core.eval.interfaces.AbstractSymbolEvaluator

org.matheclipse.core.builtin.constant.Pi

All Implemented Interfaces:

ISignedNumberConstant, ISymbolEvaluator, IEvaluator

public class Pi
extends AbstractSymbolEvaluator
implements ISignedNumberConstant

Constant Pi

Constructor Summary

Constructors

Constructor and Description
Pi()

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

Pi

public Pi()

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