Difference between revisions of "ApCoCoA-1:BB.Box"

From ApCoCoAWiki
(Description update.)
(Types section update.)
Line 18: Line 18:
 
   <types>
 
   <types>
 
     <type>list</type>
 
     <type>list</type>
 +
    <type>borderbasis</type>
 
   </types>
 
   </types>
 
   <see>BB.Border</see>
 
   <see>BB.Border</see>

Revision as of 12:09, 24 April 2009

BB.Box

Compute a box order ideal.

Syntax

BB.Box(D:LIST):LIST

Description

Computes the box order ideal of type D=[D_1,..,D_N]. The input is a list of integers D of length NumIndets(). The output is a list of terms sorted in ascending order with respect to the current term ordering.

  • @param D List of integer values representing an exponent vector of a term. The order ideal spanned by the term represented by this exponent vector will be computed.

  • @return A list of terms of the order ideal spanned by the term represented by the exponent vector D, sorted in ascending order w.r.t. the current term ordering.

Example

Use QQ[x,y,z];
BB.Box([2,1,1]);
[1, x]
-------------------------------

BB.Border