Difference between revisions of "ApCoCoA-1:DA.LPot"

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<command>
 
<command>
 
     <title>DA.LPot</title>
 
     <title>DA.LPot</title>
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<example>
 
<example>
 
Use QQ[x[1..2,0..20]];
 
Use QQ[x[1..2,0..20]];
Use QQ[x[1..2,0..20]], Ord(DA.DiffTO(<quotes>Lex</quotes>));
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Use QQ[x[1..2,0..20]], Ord(DA.DiffTO("Lex"));
 
DA.LPot(x[1,1]^2x[1,2]^2 + 1/4x[1,2]);
 
DA.LPot(x[1,1]^2x[1,2]^2 + 1/4x[1,2]);
 
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Latest revision as of 13:30, 29 October 2020

This article is about a function from ApCoCoA-1.

DA.LPot

Computes the leading power of a differential polynomial.

Syntax

DA.LPot(F:POLY):POLY

Description

DA.LPot returns the leading power of polynomial F wrt. the current differential term order, or the hereby induced ranking respectively.

  • @param F A differential polynomial.

  • @return The leading power of F.

Example

Use QQ[x[1..2,0..20]];
Use QQ[x[1..2,0..20]], Ord(DA.DiffTO("Lex"));
DA.LPot(x[1,1]^2x[1,2]^2 + 1/4x[1,2]);
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x[1,2]^2
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DA.DiffTO