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

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Computes the differential order of the differential polynomial F. The differential order is the maximum order of the derivatives occuring in the terms of F. | Computes the differential order of the differential polynomial F. The differential order is the maximum order of the derivatives occuring in the terms of F. | ||

<itemize> | <itemize> | ||

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

<item>@return Order of F.</item> | <item>@return Order of F.</item> | ||

</itemize> | </itemize> |

## Revision as of 10:59, 23 April 2009

## DA.DiffOrd

Compute the differential order of a differential polynomial.

### Syntax

DA.DiffOrd(F:POLY):INT

### Description

Computes the differential order of the differential polynomial F. The differential order is the maximum order of the derivatives occuring in the terms of F.

@param

*F*A differential polynomial.@return Order of F.

#### Example

Use Q[x[1..2,0..20]]; F:=x[1,4]^2-x[2,4]^3; DA.DiffOrd(F); ------------------------------- 4 -------------------------------