# ApCoCoA-1:BBF.RetrieveWPrimeLTs

From ApCoCoAWiki

## BBF.RetrieveWPrimeLTs

Retrieves leading terms of polynomials of `W'`.

### Syntax

BBF.RetrieveWPrimeLTs():LIST BBF.RetrieveWPrimeLTs(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 polynomials of `W'` from the ApCoCoABBFServer. The second variant with parameter `Degree` >= 0 retrieves the leading terms of degree `Degree` of the polynomials of `W'`.

@return List of leading terms of polynomials of set

`W'`.

The following parameter is optional.

@param

*Degree*Retrieves the leading terms of degree`Degree`from the polynomials of set`W'`.

#### 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.Steps(10); -- After computation has finished: BBF.RetrieveWPrimeLTs(); Output: [x^3, x^2y, x^2z, xy^2, y^3, y^2z, xz^2, yz^2, z^3]

#### 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.Steps(10); -- After computation has finished: BBF.RetrieveWPrimeLTs(2); Output: [ ]

BBF.Explanation of BBF variables and structures