[sage-support] Re: Performance of the Singular interface

2007-11-06 Thread Simon King
Dear Martin, you wrote: would you be willing to fill a bug report about this with our trac server?http://trac.sagemath.org? If you don't have an account William will (probably) provide one for you. I would do it (and have no account). An explicit way to reproduce the bug would certainly

[sage-support] Re: Permutations from gap.

2007-11-06 Thread David Joyner
Thank you for your report. Note sage: x = (1,2)(3,7)(4,6)(5,8) sage: PermutationGroup([x]) Permutation Group with generators [(1,2)(3,7)(4,6)(5,8)] works fine. The result of gap.Image is an instance of the GapElement class, so it looks like it is a syntax issue for such elements. I can take a

[sage-support] How to refer to an existing Singular object?

2007-11-06 Thread Simon King
Dear sage-supporters, assume that i have defined some Singular object (say, via singular.eval), and later i want to produce a Sage object that refers to it. I tried: sage: singular.eval('ring r = 0,(x,y,z),dp') '' sage: R=singular('r') But unfortunately R does not refer to r but to a copy of r,