Difference between revisions of "ApCoCoA-1:Weyl.WMulByMonom"
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<title>Weyl.WMulByMonom</title> | <title>Weyl.WMulByMonom</title> | ||
<short_description>Computes the product <tt>M*F</tt> of a Weyl monomial <tt>M</tt> and a Weyl polynomial <tt>F</tt> in normal form.</short_description> | <short_description>Computes the product <tt>M*F</tt> of a Weyl monomial <tt>M</tt> and a Weyl polynomial <tt>F</tt> in normal form.</short_description> | ||
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</itemize> | </itemize> | ||
| − | <em>Note:</em> Monomials and polynomials that are not in normal form should be first converted into normal form using <ref>Weyl.WNormalForm</ref>, otherwise you may get unexpected results. | + | <em>Note:</em> Monomials and polynomials that are not in normal form should be first converted into normal form using <ref>ApCoCoA-1:Weyl.WNormalForm|Weyl.WNormalForm</ref>, otherwise you may get unexpected results. |
<example> | <example> | ||
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Weyl.WMulByMonom(F,M); -- note the input | Weyl.WMulByMonom(F,M); -- note the input | ||
ERROR: 1st parameter should be a Monomial! | ERROR: 1st parameter should be a Monomial! | ||
| − | CONTEXT: Error( | + | CONTEXT: Error("1st parameter should be a Monomial!") |
------------------------------- | ------------------------------- | ||
</example> | </example> | ||
</description> | </description> | ||
<seealso> | <seealso> | ||
| − | <see>Weyl.WNormalForm</see> | + | <see>ApCoCoA-1:Weyl.WNormalForm|Weyl.WNormalForm</see> |
| − | <see>Weyl.WMul</see> | + | <see>ApCoCoA-1:Weyl.WMul|Weyl.WMul</see> |
</seealso> | </seealso> | ||
<types> | <types> | ||
Latest revision as of 13:50, 29 October 2020
| This article is about a function from ApCoCoA-1. |
Weyl.WMulByMonom
Computes the product M*F of a Weyl monomial M and a Weyl polynomial F in normal form.
Syntax
Weyl.WMulByMonom(M:POLY,F:POLY):POLY
Description
This function multiplies a Weyl monomial M with a polynomial F and returns M*F as a Weyl polynomial in normal form.
@param M A Weyl monomial.
@param F A Weyl polynomial.
@return The product M*F, a Weyl polynomial in normal form.
Note: Monomials and polynomials that are not in normal form should be first converted into normal form using Weyl.WNormalForm, otherwise you may get unexpected results.
Example
A1::=QQ[x,d]; --Define appropriate ring
Use A1;
M:=x^3d^4; F:=x^3+d^3+3xd+5;
Weyl.WMulByMonom(M,F);
x^6d^4 + x^3d^7 + 3x^4d^5 + 12x^5d^3 + 17x^3d^4 + 36x^4d^2 + 24x^3d
-------------------------------
Weyl.WMulByMonom(F,M); -- note the input
ERROR: 1st parameter should be a Monomial!
CONTEXT: Error("1st parameter should be a Monomial!")
-------------------------------
See also
