Difference between revisions of "ApCoCoA-1:DA.LD"
From ApCoCoAWiki
S schuster (talk | contribs) (New page: <command> <title>diffalg.LD</title> <short_description>Compute the leading derivative of a polynomial.</short_description> <syntax> $diffalg.LD(F:POLY):POLY </syntax> <description>...) |
S schuster (talk | contribs) |
||
| Line 1: | Line 1: | ||
<command> | <command> | ||
<title>diffalg.LD</title> | <title>diffalg.LD</title> | ||
| − | <short_description> | + | <short_description>the leading derivative of a differential polynomial</short_description> |
<syntax> | <syntax> | ||
$diffalg.LD(F:POLY):POLY | $diffalg.LD(F:POLY):POLY | ||
Revision as of 09:06, 22 December 2008
diffalg.LD
the leading derivative of a differential polynomial
Syntax
$diffalg.LD(F:POLY):POLY
Description
LD computes the leading derivative of polynomial F wrt. the current differential term ordering, or the hereby induced ranking respectivly.
Example
Use Q[x[1..2,0..20]];
Use Q[x[1..2,0..20]], Ord($diffalg.DiffTO("DegOrd"));
F:=x[1,2]^2*x[1,1]-x[2,4]^3;
$diffalg.LD(F);
-------------------------------
x[2,4]
-------------------------------
