ApCoCoA-1:DA.Class: Difference between revisions

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New page: <command> <title>diffalg.Class</title> <short_description>Return the class of a given derivative.</short_description> <syntax> $diffalg.Class(ObjectName:INDET):INT </syntax> <descr...
 
m insert version info
 
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{{Version|1}}
<command>
<command>
     <title>diffalg.Class</title>
     <title>DA.Class</title>
     <short_description>Return the class of a given derivative.</short_description>
     <short_description>Returns the class of a given derivative.</short_description>
<syntax>
<syntax>
$diffalg.Class(ObjectName:INDET):INT
DA.Class(X:INDET):INT
</syntax>
</syntax>
<description>
<description>
The function Class returns the class of a derivative, i.e., the index of the differential indeterminate of which it is a derivative.
The function Class returns the class of derivative X, i.e., the index of the differential indeterminate of which it is a derivative.
<itemize>
<item>@param <em>X</em> Indeterminate for which the class is computed.</item>
<item>@return The class of indeterminate X.</item>
</itemize>
<example>
<example>
Use Q[x[1..2,0..20]];
Use QQ[x[1..2,0..20]];
$diffalg.Class(x[1,8]);
DA.Class(x[2,8]);
-------------------------------
1
-------------------------------
 
Use Q[x[1..2,0..20]];
$diffalg.Class(x[2,8]);
-------------------------------
-------------------------------
2
2
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</example>
</example>
</description>
</description>
<wiki-category>Package_diffalg</wiki-category>
 
<types>
<type>polynomial</type>
</types>
 
<key>Class</key>
<key>DA.Class</key>
<key>diffalg.Class</key>
<key>differential.Class</key>
<wiki-category>ApCoCoA-1:Package_diffalg</wiki-category>
</command>
</command>

Latest revision as of 09:57, 7 October 2020

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]);
-------------------------------
2
-------------------------------