# ApCoCoA-1:DA.DiffOrd

From ApCoCoAWiki

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