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Thank you - I struggle to have a more meaningful mental model of matrices than "int[][]" but I'll read up on this. There are a bunch of cases where I've felt i
by jka 5y ago
Thank you - I struggle to have a more meaningful mental model of matrices than "int[][]" but I'll read up on this. There are a bunch of cases where I've felt intuitively that "this should be solved with numpy using matrices" -- perhaps time to learn some of that in more detail.
(could you add a bit more detail about any notation in particular that was useful? I see the matrix direct product symbol and have a vague initial understanding of that and block matrices)
- nestorD 5y agoPart 2 to 6 of the paper explains the elements of notation I used. The algorithm I wrote had to do with both the usual matrix product and the kronecker product (in short it lets you compute the Kronecker product of several matrices together time a given matrix much more efficiently and with a significantly lower memory usage). The notation was useful to me as it surfaces the property Wikipedia describes in the "Matrix Equation" [0] section on the Kronecker product and makes it intuitive. [0]: https://en.wikipedia.org/wiki/Kronecker_product#Matrix_equations https://en.wikipedia.org/wiki/Kronecker_product#Matrix_equat...