Opened 13 years ago

Closed 12 years ago

## #262 closed proposed feature (fixed)

# attrib isSB for maxideal(n); and variables(I);

Reported by: | gorzel | Owned by: | hannes |
---|---|---|---|

Priority: | minor | Milestone: | 3-1-2 and higher |

Component: | dontKnow | Version: | 3-1-1 |

Keywords: | Cc: |

### Description

The ideals return by maxideal and variables are always a std-basis.

So, by default, Singular could set attrib("isSB") to 1.

> ring r=0,(x,y,z),dp; > ideal I = x,y,z; > vdim(I); // ** I is no standard basis // OK 1 > vdim(maxideal(2)); // ** _ is no standard basis 4 > attrib(maxideal(2)); // This cuould be set. no attributes > ideal I = z,y2+z2; > variables(I); _[1]=y _[2]=z > attrib(variables(I)); no attributes > mult(variables(I)); // ** _ is no standard basis 1

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fixed with revision 14056