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Topic review - get number of ring paramter
Author Message
Jack
  Post subject:  Re: get number of ring paramter  Reply with quote
Doh!

It seems I have to go back to school and learn to ask precise questions.



Second trial:
is there a function in Singular interpreter language which takes as an argument a ring parameter variable
and returns its corresponding index?

If not, I would like to open a feature request for that.
Post Posted: Sat Apr 19, 2014 3:28 pm
malex
  Post subject:  Re: get number of ring paramter  Reply with quote
Code:
> ring rng =(0,a,b),(x,y,z),dp; def R = ring(ringlist(basering)[1]); setring R; R;
//   characteristic : 0
//   number of vars : 2
//        block   1 : ordering lp
//                  : names    a b
//        block   2 : ordering C
> rvar(a);
1
> rvar(b);
2
Post Posted: Wed Apr 16, 2014 6:00 am
jack
  Post subject:  get number of ring paramter  Reply with quote
Hello,

for a ring variable it is possible to get its number using rvar:
Code:
ring rng =(0,a,b),(x,y,z),dp;
rvar(x);
// 1
rvar(y);
// 2


Is the same possible for parameters (here 'a','b') ?
Post Posted: Mon Apr 14, 2014 12:07 pm


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