On Saturday, October 17, 2015 at 8:49:28 PM UTC+2, Francesco Bonazzi wrote: > > > > On Saturday, 17 October 2015 17:52:38 UTC+2, Imran Ali wrote: > >> >> But this result does not correspond to the hand calculations of Thomas >> Moore : >> >> > Do you know that unlike matrices tensors don't have defined components? I > mean, you may vary their valence (i.e. raise and lower the indices), and > you'll get different components. > > I did not verify it by hand, but I guess that if you raise the first index > of Thomas Moore's Riemann tensor, you'll get the output by SymPy. >
Ah of course! He has calculated the covariant form of the Riemann-Christoffel tensor. -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/ddac9ae8-064a-4724-863e-9a6a42564e9f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
