On Mon, Oct 19, 2015 at 7:59 AM, Imran Ali <[email protected]> wrote: > > > 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.
Perfect. Does everything work as expected then? If you find further possible problems, please let us know. 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. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CADDwiVCaujsFeZwKMGqVuGw_w-8wv2gBjjatcGyhcf%3DAy7ON6w%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
