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P. Marrone

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Mathematica 14.2 is not performing matrix multiplication on 3 times 3 matrices. &[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/c1a3a44e-0d2a-4d50-909f-c84df23654c2 AUTHOR: P. Marrone 3443VIEWS 8REPLIES BY: P. Marrone 1 year ago
Solving a system of equations gives error: not a valid variable Great. Excellent!!! Best regards AUTHOR: P. Marrone 2503VIEWS 2REPLIES BY: P. Marrone 1 year ago
Long division by increasing power order Thanks AUTHOR: P. Marrone 3518VIEWS 7REPLIES BY: P. Marrone 1 year ago
Do not want to use Chat Notebooks nor OPEN IA From a few days on, I have noticed that every time I execute an instruction, I get Wolfram Connector trying to take me to Open AI. I do not want to use this option. How can I get rid of this nuisance? Moreover, how can I get back to normal... AUTHOR: P. Marrone 1917VIEWS 0REPLIES 1 year ago
Can't get the particular solution from the general and the complementary I am not able to get the particular solution of a linear differential equation from the general solution and the particular solution. Clear[t, x] ecuación = x''''[t] + 5 x''[t] + 4 == Sin[t] + Cos[2 t] xc = x''''[t] + 5... AUTHOR: P. Marrone 2696VIEWS 1REPLIES 2 years ago
Problem with using AllReplace at equation solutions Thank you. Best regards. I will take a look later on. AUTHOR: P. Marrone 4576VIEWS 8REPLIES BY: P. Marrone 2 years ago
Why I can't copy cells in a notebook Thank you. I proceed as per your advice. But no luck. Note that in Option Inspectors, when I go to Cell Duplicates, its false and I can 't turn it to true. AUTHOR: P. Marrone 3958VIEWS 3REPLIES BY: P. Marrone 3 years ago

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