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

From ApCoCoAWiki
(Corrected example.)
Line 12: Line 12:
 
</itemize>
 
</itemize>
 
<example>
 
<example>
Use Q[x[1..2,0..20]];
+
Use QQ[x[1..2,0..20]];
Use Q[x[1..2,0..20]], Ord(DA.DiffTO(<quotes>Lex</quotes>));
+
Use QQ[x[1..2,0..20]], Ord(DA.DiffTO(<quotes>Lex</quotes>));
 
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]);
 
-------------------------------
 
-------------------------------

Revision as of 11:08, 28 April 2009

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(<quotes>Lex</quotes>));
DA.LPot(x[1,1]^2x[1,2]^2 + 1/4x[1,2]);
-------------------------------
x[1,2]^2
-------------------------------

DA.DiffTO