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

From ApCoCoAWiki
(Corrected example. (Skaspar))
Line 15: Line 15:
 
Use QQ[x,y,z];
 
Use QQ[x,y,z];
 
BB.Box([2,1,1]);
 
BB.Box([2,1,1]);
[1, x]
+
 
 +
[1, z, y, x, yz, xz, xy, x^2, xyz, x^2z, x^2y, x^2yz]
 
-------------------------------
 
-------------------------------
 
</example>
 
</example>

Revision as of 23:30, 31 March 2011

BB.Box

Computes 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, z, y, x, yz, xz, xy, x^2, xyz, x^2z, x^2y, x^2yz]
-------------------------------

BB.Border