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| Hello Brian, This *is* absolutely what I have been waiting for years! I have been educated in differential Topology in the... Bourbaki style. You do explain the other way round. I guess anyone here can understand this brilliant lesson. As... |
| Jean-Michel Paris Retired mathematician Indeed this is a very GREAT piece of code but it should have been coded in the kernel a long time ago. That means I do not want to type 100 lines of code to get, for example, the Ricci tensor. The... |
| Hello Updating Name and others, You *should* have noticed that it is evidently a typo! And please don't give me lessons on integro-differential equation, thank you. indeed o'' has no meaning I meant (reread the post) . o denotes composition of... |
| Hello Shengui and others, Yes the proof USING Mathematica is clear enough and is absolutely right. But what I expected is a formal proof of the divergence withOUT using Mathematica. I just need a clue to start to prove it with pen and paper. ... |
| Hello all, On Mathematica CLI les characters {[|\]} don't work. I already had that in the past and there was a trick which I do not remember. Any help would be greatly appreciated. Kind regards, Jean-Michel |
| Hello, Here is the benchmark of Mathematica with a Ryzen 9 3950X 128 Go RAM Nvidia RTX 3090. Hopefully in two weeks I will have the monster AMD RYZEN Threadripper 3990X with 250 Go RAM. I will post here the result. Thank you. Jean-Michel |
| Hello Michal, I will send a mail to Support. Regards, Jean-Michel |
| Hello people :) Just ran the Benchmark with 12.1.1 and look up the results. Fulgurant! Config: AMD Ryzen 9 128 Go RAM NVidia RTX 3090 24 Go RAM I'm happy and wanted let you know. Jean-Michel Beenchmark Result : 2.93 (geez) |
| Hello all, I'm looking for a book on Mathematica. It's "The Ins and Outs of Mathematica". I'm ready to pay up to 50/$ ( including packing and postage) for this book whatever its state. I've tried Amazon US...Amazon UK..Amazon France with no... |
| Yes Venkat, We have an excellent book from R.E.Maeder (who was a Mathematica programmer at the beginning with Stephen. "Programming in Mathematica/The Mathematica programmer". A bit out-dated but just excellent. Regards, JMC |