org.matheclipse.core.reflection.system

Class Pochhammer

java.lang.Object

org.matheclipse.core.eval.interfaces.AbstractEvaluator

org.matheclipse.core.eval.interfaces.AbstractFunctionEvaluator

org.matheclipse.core.eval.interfaces.AbstractArg2

org.matheclipse.core.reflection.system.Pochhammer

All Implemented Interfaces:

IFunctionEvaluator, IEvaluator

public class Pochhammer
extends AbstractArg2

Compute Pochhammer's symbol (this)_n.

Constructor Summary

Constructors

Constructor and Description
Pochhammer()

Method Summary

Modifier and Type	Method and Description
IExpr	e2ObjArg(IExpr a, IExpr n) Evaluate the function for the 2 given expressions.
static org.apache.commons.math4.fraction.BigFraction	pochhammer(org.apache.commons.math4.fraction.BigFraction th, java.math.BigInteger n) Compute Pochhammer's symbol (this)_n.
static org.apache.commons.math4.fraction.BigFraction	pochhammer(org.apache.commons.math4.fraction.BigFraction th, int n) Compute pochhammer's symbol (this)_n.
void	setUp(ISymbol symbol) Evaluate built-in rules and define Attributes for a function.

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

binaryOperator, e2ApcomplexArg, e2ApfloatArg, e2ComArg, e2DblArg, e2DblComArg, e2FraArg, e2FunArg, e2IntArg, e2SymArg, eComFraArg, eComIntArg, eFunIntArg, evaluate

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

Constructor Detail

Pochhammer

public Pochhammer()

Method Detail

e2ObjArg

public IExpr e2ObjArg(IExpr a,
                      IExpr n)

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.

pochhammer

public static org.apache.commons.math4.fraction.BigFraction pochhammer(org.apache.commons.math4.fraction.BigFraction th,
                                                                       java.math.BigInteger n)

Compute Pochhammer's symbol (this)_n.

Parameters:

n - The number of product terms in the evaluation.

Returns:

Gamma(this+n)/Gamma(this) = this*(this+1)*...*(this+n-1).

pochhammer

public static org.apache.commons.math4.fraction.BigFraction pochhammer(org.apache.commons.math4.fraction.BigFraction th,
                                                                       int n)

Compute pochhammer's symbol (this)_n.

Parameters:

n - The number of product terms in the evaluation.

Returns:

Gamma(this+n)/GAMMA(this).

setUp

public void setUp(ISymbol symbol)
           throws SyntaxError

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

Throws:

SyntaxError