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

From ApCoCoAWiki

S schuster (talk | contribs) m (ApCoCoA:Diffalg.Class moved to ApCoCoA:DA.Class: To comply with style principles.) |
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<command> | <command> | ||

− | <title> | + | <title>DA.Class</title> |

− | <short_description> | + | <short_description>Returns the class of a given derivative.</short_description> |

<syntax> | <syntax> | ||

DA.Class(X:INDET):INT | DA.Class(X:INDET):INT | ||

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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> | <itemize> | ||

− | <item>@param X Indeterminante for which the class is computed.</item> | + | <item>@param <em>X</em> Indeterminante for which the class is computed.</item> |

<item>@return The class of indeterminate X.</item> | <item>@return The class of indeterminate X.</item> | ||

</itemize> | </itemize> | ||

<example> | <example> | ||

Use Q[x[1..2,0..20]]; | Use Q[x[1..2,0..20]]; | ||

− | + | DA.Class(x[2,8]); | |

------------------------------- | ------------------------------- | ||

2 | 2 |

## Revision as of 10:57, 23 April 2009

## 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*Indeterminante for which the class is computed.@return The class of indeterminate X.

#### Example

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