org.matheclipse.core.convert

Class JASIExpr

java.lang.Object

org.matheclipse.core.convert.JASIExpr

Type Parameters:

C -

public class JASIExpr
extends java.lang.Object

Convert JAS objects from and to MathEclipse objects

Constructor Summary

Constructors

Constructor and Description
JASIExpr(IExpr variable, RingFactory<IExpr> ringFactory)
JASIExpr(java.util.List<? extends IExpr> variablesList, RingFactory<IExpr> ringFactory)
JASIExpr(java.util.List<? extends IExpr> variablesList, RingFactory<IExpr> ringFactory, TermOrder termOrder)

Method Summary

Modifier and Type	Method and Description
IExpr	complexPoly2Expr(GenPolynomial<Complex<BigRational>> poly) Convert a JAS complex polynomial to IExpr.
GenPolynomial<IExpr>	expr2IExprJAS(IExpr exprPoly) Convert the given expression into a JAS polynomial.
IAST	exprPoly2Expr(GenPolynomial<IExpr> poly, IExpr variable) Converts a JAS polynomial to a MathEclipse AST with head Plus
java.lang.Object[]	factorTerms(GenPolynomial<BigRational> A) BigInteger from BigRational coefficients.
GenPolynomialRing<IExpr>	getPolynomialRingFactory()
GenPolynomial<BigInteger>	integerFromRationalCoefficients(GenPolynomial<BigRational> A) BigInteger from BigRational coefficients.
IExpr	integerPoly2Expr(GenPolynomial<BigInteger> poly) Convert a JAS integer polynomial to IExpr.

Methods inherited from class java.lang.Object

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

Constructor Detail

JASIExpr

public JASIExpr(IExpr variable,
                RingFactory<IExpr> ringFactory)

JASIExpr

public JASIExpr(java.util.List<? extends IExpr> variablesList,
                RingFactory<IExpr> ringFactory)

JASIExpr

public JASIExpr(java.util.List<? extends IExpr> variablesList,
                RingFactory<IExpr> ringFactory,
                TermOrder termOrder)

Method Detail

expr2IExprJAS

public GenPolynomial<IExpr> expr2IExprJAS(IExpr exprPoly)
                                   throws JASConversionException

Convert the given expression into a JAS polynomial. Only symbolic numbers are converted (i.e. no INum or IComplexNum values are converted into the polynomial structure)

Parameters:

exprPoly -

Returns:

Throws:

JASConversionException

factorTerms

public java.lang.Object[] factorTerms(GenPolynomial<BigRational> A)

BigInteger from BigRational coefficients. Represent as polynomial with BigInteger coefficients by multiplication with the gcd of the numerators and the lcm of the denominators of the BigRational coefficients.

Parameters:

A - polynomial with BigRational coefficients to be converted.

Returns:

Object[] with 3 entries: [0]->gcd [1]->lcm and [2]->polynomial with BigInteger coefficients.

getPolynomialRingFactory

public GenPolynomialRing<IExpr> getPolynomialRingFactory()

Returns:

the fPolyFactory

integerFromRationalCoefficients

public GenPolynomial<BigInteger> integerFromRationalCoefficients(GenPolynomial<BigRational> A)

BigInteger from BigRational coefficients. Represent as polynomial with BigInteger coefficients by multiplication with the lcm of the numerators of the BigRational coefficients.

Parameters:

A - polynomial with BigRational coefficients to be converted.

Returns:

polynomial with BigInteger coefficients.

integerPoly2Expr

public IExpr integerPoly2Expr(GenPolynomial<BigInteger> poly)
                       throws java.lang.ArithmeticException,
                              java.lang.ClassCastException

Convert a JAS integer polynomial to IExpr.

Parameters:

poly -

Returns:

Throws:

java.lang.ArithmeticException

java.lang.ClassCastException

complexPoly2Expr

public IExpr complexPoly2Expr(GenPolynomial<Complex<BigRational>> poly)
                       throws java.lang.ArithmeticException,
                              java.lang.ClassCastException

Convert a JAS complex polynomial to IExpr.

Parameters:

poly -

Returns:

Throws:

java.lang.ArithmeticException

java.lang.ClassCastException

exprPoly2Expr

public IAST exprPoly2Expr(GenPolynomial<IExpr> poly,
                          IExpr variable)
                   throws java.lang.ArithmeticException,
                          java.lang.ClassCastException

Converts a JAS polynomial to a MathEclipse AST with head Plus

Parameters:

poly - a JAS polynomial

variable -

Returns:

Throws:

java.lang.ArithmeticException

java.lang.ClassCastException