On Tue, Aug 13, 2013 at 12:27 PM, Ondřej Čertík <[email protected]> wrote: > On Tue, Aug 13, 2013 at 8:43 AM, Alan Bromborsky <[email protected]> wrote: >> Attached is the output of the simulation of a Foucault pendulum. The >> question pertains to the output in red. I have and expression for >> \omega_{+} and \omega_{-} and I wish to do a symbolic Taylor expansion for >> \omega_{+}-\omega_{-} in terms of \omega_{E}. The problem is that when >> \omega_{E}=0 the partial derivatives evaluate to nan since we are dividing >> zero by zero. Is there a way in sympy to apply the L'Hopital rule >> symbolically or what should I do? > > So the coefficient in the Taylor expansion is such, that when you > naively put 0 for your expansion variable \omega_E, > you get 0/0? Yes, in that case you can try the "limit" command in > SymPy. Let me know if it can do your expression.
Also, try the ".series()" command. It might work, as it is expanding the expression inside out, to avoid such problems. Ondrej -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. For more options, visit https://groups.google.com/groups/opt_out.
