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

From ApCoCoAWiki

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− | Computes the box order ideal of type <tt>D=[D_1,..,D_N]</tt>. The input is a list of integers <tt>D</tt> of length <ref>NumIndets</ref>(). The output is a list of terms sorted in ascending order with respect to the current term ordering. | + | Computes the box order ideal of type <tt>D=[D_1,..,D_N]</tt>. The input is a list of integers <tt>D</tt> of length <ref>ApCoCoA-1:NumIndets|NumIndets</ref>(). The output is a list of terms sorted in ascending order with respect to the current term ordering. |

<itemize> | <itemize> | ||

<item>@param <em>D</em> 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.</item> | <item>@param <em>D</em> 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.</item> | ||

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− | <see>BB.Border</see> | + | <see>ApCoCoA-1:BB.Border|BB.Border</see> |

<key>Box</key> | <key>Box</key> |

## Revision as of 07:54, 7 October 2020

## 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] -------------------------------