I'm not entirely clear what you are trying to do, but some of the stuff in the matrix expressions module may be of use to you.
Aaron Meurer On Tue, Sep 10, 2013 at 5:15 AM, <[email protected]> wrote: > Hi, I am trying to achieve the following: > >>>> f = Function('f')(M,x) >>>> f = M[x+1] - M[x] >>>> F = lambdify(f) >>>> print F(np.array([5,2,1]),1) >>>> 3 > > What would be the best way to do it? > > > By the way this is part of a bigger goal i.e. discretize derivatives of > arbitrary order, but I am totally a newbie and I have to go step by step... > (See my post here: > http://stackoverflow.com/questions/18701290/derivatives-discretization-with-sympy) > > -- > 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. -- 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.
