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Polynomial / in GF(2^8)? https://www.singular.uni-kl.de/forum/viewtopic.php?f=10&t=1435 |
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Author: | Xijin Tang [ Thu Aug 11, 2005 5:33 pm ] |
Post subject: | Polynomial / in GF(2^8)? |
> ring r=(2^8,z),(x,y),lp; > poly a=z^45*(x2-y2); > poly b=x-y; > a/b; ? not implemented ? error occurred in STDIN line 4: `a/b;` Does this means I could not use / in GF(2^8), will you implement that function in future? Thank you very much! email: tangxij@mails.gscas.ac.cn Posted in old Singular Forum on: 2005-05-27 04:23:16+02 |
Author: | wienand [ Tue Sep 20, 2005 4:46 pm ] |
Post subject: | |
Dear Xijin Tang, the polynomial x-y is no unit in the ring GF(2^8)[x,y]. So Singular does not allow you to divide by it. It would allow you to divide a by any number in the coefficient field, i.e. a polynomial only in z. Sincerely, Oliver Wienand |
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