On Friday, January 10, 2014 4:56:03 PM UTC-5, Comer wrote: > > Today I have been looking at the sympy tensor package. I have attached a > script in which I am trying to end of defining the Einstein tensor: R_{a b} > - 1/2 *g_{a b} * R. But the script does not succeed on the last step of > evaluating the above expression and hence fails to agree to create the > Einstein tensor. I am wondering what I am doing incorrectly? > > Thanks for advice. > > Comer >
There were a couple of typos: first I mean to say that "I am trying to end UP..." and second in the expression for the Einstein tensor I meant to write g(-a,-b) of course... Sorry. Comer -- 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 sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy. For more options, visit https://groups.google.com/groups/opt_out.