Back to Forum | View unanswered posts | View active topics





Post a reply
Username:
Note:If not registered, provide any username. For more comfort, register here.
Subject:
Message body:
Enter your message here, it may contain no more than 60000 characters. 

Smilies
:D :) :( :o :shock: :? 8) :lol: :x :P :oops: :cry: :evil: :twisted: :roll: :wink: :!: :?: :idea: :arrow: :| :mrgreen:
Font size:
Font colour
Options:
BBCode is ON
[img] is ON
[flash] is OFF
[url] is ON
Smilies are ON
Disable BBCode
Disable smilies
Do not automatically parse URLs
Confirmation of post
To prevent automated posts the board requires you to enter a confirmation code. The code is displayed in the image you should see below. If you are visually impaired or cannot otherwise read this code please contact the %sBoard Administrator%s.
Confirmation code:
Enter the code exactly as it appears. All letters are case insensitive, there is no zero.
   

Topic review - Polynomial / in GF(2^8)?
Author Message
wienand
  Post subject:   Reply with quote
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
Post Posted: Tue Sep 20, 2005 4:46 pm
Xijin Tang
  Post subject:  Polynomial / in GF(2^8)?  Reply with quote
> 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: [email protected]
Posted in old Singular Forum on: 2005-05-27 04:23:16+02
Post Posted: Thu Aug 11, 2005 5:33 pm


It is currently Fri May 13, 2022 10:57 am
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group