Looks close but not quite. I'm interested in what's described here: https://stats.stackexchange.com/a/198395
Basically a dumb as bricks extension to matrices to higher dimensions with a contraction along selectable axes, with no notion of co and contravariance, and ability to have any number of elements in each dimension, e.g. a (8,1,512) shaped tensor (or n-way-array) should be possible. >From what I've seen of tensors with indices are forced to be n-dimensional cubes (along with having the co and contravariant limitations to contractions). On Tue, Apr 16, 2024 at 12:19 PM Matthias Koeppe <matthiaskoe...@gmail.com> wrote: > You might be looking for > https://doc.sagemath.org/html/en/reference/tensor_free_modules/sage/tensor/modules/tensor_with_indices.html > > On Tuesday, April 9, 2024 at 6:59:27 AM UTC-7 Anton Todorov wrote: > >> Einsum: >> https://numpy.org/doc/stable/reference/generated/numpy.einsum.html >> >> It is a way to define multiple operations on arrays of arbitrary shape. >> I've not seen anything that suggests this is implemented in sagemath, but I >> was hoping there might be something hidden. >> >> What I need this for is to calculate symbolic results of array operations >> which are too cumbersome to represent as matrix operations. >> > -- > You received this message because you are subscribed to a topic in the > Google Groups "sage-support" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/sage-support/Jg64P1k2YfI/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > sage-support+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sage-support/9acdf077-64a3-4034-8835-e1d806e0e049n%40googlegroups.com > <https://groups.google.com/d/msgid/sage-support/9acdf077-64a3-4034-8835-e1d806e0e049n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/CAG%2Bkvu%3DXGrRsX1eNVc6wvmXd6L43h1AvF2AZZLOeRyHexKNGuA%40mail.gmail.com.
