hey, i tried the same sympy live i again showed true for sqrt(3).is_rational ...
why so ... isnt it a bug please check on sympy live On Thu, Mar 1, 2012 at 10:40 PM, Aaron Meurer <[email protected]> wrote: > Yes, this was a bug that was recently fixed in SymPy. > > Unfortunately, it was not fixed to give a positive answer in this > case. But for the product of rational numbers to rational powers, > they are automatically put into a canonicalized form, so unless they > explicitly look rational (this can be checked programmatically with > .is_Rational), they aren't. The exception is if one of the bases is > very large, so large that we do not attempt to factorize it due to the > potential time complexity. > > For expressions containing more than this, there is no algorithm > implemented, and no simple way to check either. > > Aaron Meurer > > On Thu, Mar 1, 2012 at 7:22 AM, Sergiu Ivanov > <[email protected]> wrote: > > On Thu, Mar 1, 2012 at 3:52 PM, prateek papriwal > > <[email protected]> wrote: > >> in sympy > >> > >>>>>sqrt(3).is_rational > >> TRUE > >> > >> this is wrong .. > > > > Which version of SymPy are you doing this in? > > > > For me, > > > > In [12]: sqrt(3).is_rational > > > > In [13]: print(sqrt(3).is_rational) > > None > > > > Given that > > > > $ ./bin/isympy --version > > 0.7.1-git > > > > Sergiu > > > > -- > > You received this message because you are subscribed to the Google > Groups "sympy" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > [email protected]. > > For more options, visit this group at > http://groups.google.com/group/sympy?hl=en. > > > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/sympy?hl=en. > > -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
