A variation on your first try is:
sage: ((a*b - (1/2)*a*(b - c))/a).simplify_radical()
(c + b)/2
which works fine. Maybe it's a bug in maxima. I don't see why you
would need simplify_radical() at all here, since your expression
contains no radicals.
John Cremona
2008/10/24 Stan Schymanski <[EMAIL PROTECTED]>:
>
> Dear all,
>
> I just noted some strange behaviour with simplify_radical():
>
> ----------------------------------------------------------------------
> | SAGE Version 3.1.2, Release Date: 2008-09-19 |
> | Type notebook() for the GUI, and license() for information. |
> ----------------------------------------------------------------------
>
> sage: sage: var('a b c')
> (a, b, c)
> sage: ((a*b - 0.5*a*(b - c))/a).simplify_radical()
> 0
> sage: ((b - 0.5*(b - c))).simplify_radical()
> 0.500000000000000*c + 0.500000000000000*b
>
> Clearly, the second result should be the same as the first one, as 'a'
> cancels out. Does anyone know how to avoid such mistakes and whether
> it is advisable to use simplify_radical at all?
>
> Cheers
> Stan
> >
>
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/sage-support
URLs: http://www.sagemath.org
-~----------~----~----~----~------~----~------~--~---
