On Saturday, January 11, 2014 2:04:23 PM UTC-5, F. B. wrote: > > > > On Saturday, January 11, 2014 7:26:51 PM UTC+1, Comer wrote: >> >> >> I do have another question or two... >> >> I see the .data method. What is really needed is the ability to create >> data arrays constructed from symbols, indeed functions of various local >> coordinates. So far I have only seen numerical entries in the data... Can >> one put instead something like what symarray provides in place of the >> Minkowski metric? >> >> > Yes, of course. I just notice there's no symbolic example in the > docstrings. Take a look at this test: > > > https://github.com/sympy/sympy/blob/master/sympy/tensor/tests/test_tensor.py#L1235 > > This is a 4-momentum-like assignment of sympy Symbols. Nested lists or a > generating function are accepted. I don't remember if it also accepts a > numpy ndarray, if it doesn't, that' a bug. >
Ok, thanks. I will give it a try. 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 [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.
