# ApCoCoA-1:DA.DiffOrd

From ApCoCoAWiki

Revision as of 14:06, 22 April 2009 by S schuster (talk | contribs) (ApCoCoA:Diffalg.DiffOrd moved to ApCoCoA:DA.DiffOrd: To comply with style principles.)

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