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| Calling singular.invariant_theory() from Sagemath https://www.singular.uni-kl.de/forum/viewtopic.php?f=10&t=2862 |
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| Author: | kummini [ Wed Aug 21, 2019 11:18 pm ] |
| Post subject: | Calling singular.invariant_theory() from Sagemath |
(I have posted this question on the ask.sagemath forum also.) I am trying to compute an invariant ring for a finite group using Singular through Sagemath, but I get an error. Here is a minimal example. Code: singular.lib('finvar.lib') R = singular.ring(3,'(x0, x1)', 'dp') g = singular.matrix(2,2,'1,0,1,1') singuslar.invariant_ring(g) However I get an error: Code: File "/usr/lib/python2.7/dist-packages/sage/interfaces/singular.py", line 653, in eval raise SingularError('Singular error:\n%s'%s) TypeError: Singular error: ? assign not impl. ? error occurred in or before STDIN line 16: ` return(P,S);` (This happens in Debian 9, with sagemath and Singular installed using apt, and in Debian 10, both installed the same way, and on the Sage Cell server.) How do I fix this problem? |
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| Author: | kummini [ Fri Aug 23, 2019 2:58 am ] |
| Post subject: | Re: Calling singular.invariant_theory() from Sagemath |
This is a possible bug in SageMath: see the reply for my question at the ask.sagemath.org forum. (I am unable to post its URL here.) |
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