ApCoCoA-1:DA.Class

diffalg.Class

Return the class of a given derivative.

Syntax

$diffalg.Class(ObjectName:INDET):INT

Description

The function Class returns the class of a derivative, i.e., the index of the differential indeterminate of which it is a derivative.

Example

Use Q[x[1..2,0..20]];
$diffalg.Class(x[1,8]);
-------------------------------
1
-------------------------------

Use Q[x[1..2,0..20]];
$diffalg.Class(x[2,8]);
-------------------------------
2
-------------------------------