# Difference between revisions of "ApCoCoA-1:DA.Class"

From ApCoCoAWiki

S schuster (talk | contribs) |
S schuster (talk | contribs) |
||

Line 3: | Line 3: | ||

<short_description>return the class of a given derivative</short_description> | <short_description>return the class of a given derivative</short_description> | ||

<syntax> | <syntax> | ||

− | + | DA.Class(X:INDET):INT | |

</syntax> | </syntax> | ||

<description> | <description> | ||

The function Class returns the class of derivative X, 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 X Indeterminante 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 Q[x[1..2,0..20]]; | ||

$diffalg.Class(x[2,8]); | $diffalg.Class(x[2,8]); | ||

Line 21: | Line 19: | ||

</example> | </example> | ||

</description> | </description> | ||

+ | <types> | ||

+ | <type>polynomial</type> | ||

+ | </types> | ||

+ | <key>Class</key> | ||

+ | <key>DA.Class</key> | ||

+ | <key>diffalg.Class</key> | ||

+ | <key>differential.Class</key> | ||

<wiki-category>Package_diffalg</wiki-category> | <wiki-category>Package_diffalg</wiki-category> | ||

</command> | </command> |

## Revision as of 12:17, 22 April 2009

## diffalg.Class

return 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 Indeterminante for which the class is computed.

@return The class of indeterminate X.

#### Example

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