ApCoCoA-1:DA.Class

This article is about a function from ApCoCoA-1.

DA.Class

Returns the class of a given derivative.

Syntax

DA.Class(X:INDET):INT

Description

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

• @param X Indeterminate for which the class is computed.

• @return The class of indeterminate X.

Example

Use QQ[x[1..2,0..20]];
DA.Class(x[2,8]);
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2
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