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On 25 March 2021, David Park gave the 51-minute talk *Introductory Tour of Grassmann Algebra and Calculus in Mathematica* ( https://www.youtube.com/watch?v=TGGDihbLm6g ). The application is a joint advanced developmental project by David Park and... |
Thank you, Mano. We're all watching how your team enhances theorem proving in WL, as more theories are added to AxiomaticTheory. I may post other questions as this 6-session course on Theorem Proving progresses. John McGee teaches it thru Tech... |
Thanks for the references. The afterward to Lakoff and Johnson's book contains a short discussion of a new viewpoint: a Neural Theory of Language. There are some references that are a bit old in such a rapidly evolving field, but I will check them... |
and you did not try to find a solution to the problem using other resources? I can recommend an alternative https://edit-pdf.pdffiller.com/, there are many functions for working with pdf files. maybe you will find something else for yourself using... |
Thanks again, Sander, especially for the second line Table[i[[2]] -> i,{i,X}]. This is an eye-opener, one more valuable than what my original posting had sought. Your example is the first time I've seen Table used in this way. No doubt it has... |
Thanks Carl. Using Normal is what I first used but for my long Laurent polynomials, processing was slowing down. That's when I asked Tech Support if there was a faster way and that's when zeroing-out was suggested. Since Normal adapts to many... |
This is great, Gianluca. Thanks. |
You can check what is happening by extracting the parts: list = { {?, 14, 0, 67, ?}, {-3, ?, ?, 0, 6}, {?, 0, ?, 66, 59}, {45, ?, 5, ?, 0}, {0, 29, 25, ?, ?}} Position[list, x_ /; UnsameQ[x,... |
yes, I should have said "non polynomial" rather than "nonlinear" |
Bingo! Exactly what I sought. Nassir's earlier reply was also instructive. Thanks to you both, Nassir and Sander. |