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

From ApCoCoAWiki

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− | Use | + | Use QQ[x[1..2,0..20]]; |

− | Use | + | 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]); | ||

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## 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 -------------------------------