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

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

<itemize> | <itemize> | ||

− | <item>@param F A differential polynomial.</item> | + | <item>@param <em>F</em> A differential polynomial.</item> |

<item>@return The leading power of F.</item> | <item>@return The leading power of F.</item> | ||

</itemize> | </itemize> | ||

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</types> | </types> | ||

<see>DA.DiffTO</see> | <see>DA.DiffTO</see> | ||

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<key>LPot</key> | <key>LPot</key> | ||

<key>DA.LPot</key> | <key>DA.LPot</key> |

## Revision as of 11:06, 23 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 Q[x[1..2,0..20]]; Use Q[x[1..2,0..20]], Ord(DA.DiffTO("Lex")); DA.LPot(x[1,1]^2x[1,2]^2 + 1/4x[1,2]); ------------------------------- x[1,2]^2 -------------------------------