Difference between revisions of "ApCoCoA-1:BBF.RetrieveBorderBasisLTs"
From ApCoCoAWiki
(Updated parameter and return value list.) |
m (insert version info) |
||
| (14 intermediate revisions by 3 users not shown) | |||
| Line 1: | Line 1: | ||
| + | {{Version|1}} | ||
<command> | <command> | ||
| − | + | <title>BBF.RetrieveBorderBasisLTs</title> | |
| − | + | <short_description>Retrieves leading terms of a computed border basis.</short_description> | |
| + | |||
<syntax> | <syntax> | ||
BBF.RetrieveBorderBasisLTs():LIST | BBF.RetrieveBorderBasisLTs():LIST | ||
BBF.RetrieveBorderBasisLTs(Degree:INT):LIST | BBF.RetrieveBorderBasisLTs(Degree:INT):LIST | ||
</syntax> | </syntax> | ||
| − | + | <description> | |
| − | The first | + | <em>Please note:</em> The function(s) explained on this page is/are using the <em>ApCoCoABBFServer</em>. You will have to start the ApCoCoABBFServer in order to use it/them. |
| − | The second | + | <par/> |
| − | + | The first variant of this command without parameter retrieves the leading terms of the computed border basis polynomials from the ApCoCoABBFServer. | |
| + | The second variant with the parameter <tt>Degree</tt> >= 0 retrieves the leading terms of degree <tt>Degree</tt> of the computed border basis polynomials. | ||
<itemize> | <itemize> | ||
| − | <item>@return | + | <item>@return List of border basis leading terms.</item> |
| + | </itemize> | ||
| + | The following parameter is optional. | ||
| + | <itemize> | ||
| + | <item>@param <em>Degree</em> Retrieve the border basis leading terms of degree <tt>Degree</tt>.</item> | ||
</itemize> | </itemize> | ||
<example> | <example> | ||
| − | Use | + | Use ZZ/(32003)[x, y, z],DegLex; |
I:=Ideal(-4*x^2 + 1, -4*y^2 - 1, 5*z^2); | I:=Ideal(-4*x^2 + 1, -4*y^2 - 1, 5*z^2); | ||
BBF.Init(I); | BBF.Init(I); | ||
| Line 25: | Line 32: | ||
</example> | </example> | ||
<example> | <example> | ||
| − | Use | + | Use ZZ/(32003)[x, y, z],DegLex; |
I:=Ideal(-4*x^2 + 1, -4*y^2 - 1, 5*z^2); | I:=Ideal(-4*x^2 + 1, -4*y^2 - 1, 5*z^2); | ||
BBF.Init(I); | BBF.Init(I); | ||
| Line 35: | Line 42: | ||
[z^2, y^2, x^2] | [z^2, y^2, x^2] | ||
</example> | </example> | ||
| − | + | </description> | |
| − | < | + | <types> |
| − | + | <type>borderbasis</type> | |
| − | + | </types> | |
| − | + | <see>ApCoCoA-1:BBF.RetrieveBorderBasis|BBF.RetrieveBorderBasis</see> | |
| − | + | <see>ApCoCoA-1:BBF.RetrieveBorderBasisPolyByLT|BBF.RetrieveBorderBasisPolyByLT</see> | |
| − | + | <see>ApCoCoA-1:BB.BBasis|BB.BBasis</see> | |
| + | <key>RetrieveBorderBasisLTs</key> | ||
| + | <key>BBF.RetrieveBorderBasisLTs</key> | ||
| + | <wiki-category>ApCoCoA-1:Package_bbf</wiki-category> | ||
</command> | </command> | ||
Latest revision as of 09:47, 7 October 2020
| This article is about a function from ApCoCoA-1. |
BBF.RetrieveBorderBasisLTs
Retrieves leading terms of a computed border basis.
Syntax
BBF.RetrieveBorderBasisLTs():LIST BBF.RetrieveBorderBasisLTs(Degree:INT):LIST
Description
Please note: The function(s) explained on this page is/are using the ApCoCoABBFServer. You will have to start the ApCoCoABBFServer in order to use it/them.
The first variant of this command without parameter retrieves the leading terms of the computed border basis polynomials from the ApCoCoABBFServer.
The second variant with the parameter Degree >= 0 retrieves the leading terms of degree Degree of the computed border basis polynomials.
@return List of border basis leading terms.
The following parameter is optional.
@param Degree Retrieve the border basis leading terms of degree Degree.
Example
Use ZZ/(32003)[x, y, z],DegLex; I:=Ideal(-4*x^2 + 1, -4*y^2 - 1, 5*z^2); BBF.Init(I); BBF.Finish(); -- After computation has finished: BBF.RetrieveBorderBasisLTs(); Output: [z^2, y^2, x^2, yz^2, y^2z, xz^2, xy^2, x^2z, x^2y, xyz^2, xy^2z, x^2yz]
Example
Use ZZ/(32003)[x, y, z],DegLex; I:=Ideal(-4*x^2 + 1, -4*y^2 - 1, 5*z^2); BBF.Init(I); BBF.Finish(); -- After computation has finished: BBF.RetrieveBorderBasisLTs(2); Output: [z^2, y^2, x^2]
BBF.RetrieveBorderBasisPolyByLT
