I think what you mean here is more like "variables" rather than "symbols". You might want to try using Spyder which can show you the values of all of the Python variables you have defined.
On Thu, 7 Dec 2023 at 17:16, Mario Lemelin <math000...@gmail.com> wrote: > > If I had one functionality to have in Sympy, it would be the possibility to > get access to a list of symbols that I am using in my notebook. A function > called, let's say LstSymbols(), which give the name of the symbols that are > in use in the notebook in addition to their values . This way, I can see if, > by manipulations, I change some values of the symbols. Or maybe that function > already exists? That would be a good thing to have when you are trying to get > back some steps. Just as suggestion! > > Le jeudi 7 décembre 2023 à 09:49:36 UTC-5, syle...@gmail.com a écrit : >> >> Jupyter notebook is already a good framework to write code like literature, >> and unfortunately, I don't think that we need a different tooling from SymPy >> to do that. >> >> I just advice to make multiple cells, structure your notebooks well, >> and print the intermediate results of your computation often in your cell >> (use print or display) >> >> I don't think that it is easy for any computer algebra, or related tools to >> support 'step-back' functionality. >> I haven't seen that in other competitors, like Mathematica, too. >> The problem can be generalized to time-travel debugging (Time travel >> debugging - Wikipedia), >> and it is an area of research, if it matters how to do it correctly, or >> efficiently. >> >> On Wednesday, December 6, 2023 at 10:20:16 PM UTC gu...@uwosh.edu wrote: >>> >>> Aaron's comments are really important. These are pitfalls that can easily >>> lead to inconsistent outcomes and notebooks that do not work. >>> >>> On Wednesday, December 6, 2023 at 3:09:16 PM UTC-6 asme...@gmail.com wrote: >>>> >>>> It really depends on how you structure your code. SymPy expressions >>>> are immutable, so if you just assign each step to a different >>>> variable, you can easily refer back to previous variables. >>>> >>>> You should also be careful with Jupyter notebooks that if you delete >>>> cells, or insert cells before other cells, you may end up with a >>>> notebook that doesn't actually execute again if you open it again >>>> later, because when you start a notebook from scratch the cells are >>>> always executed from top to bottom, which may not be the original >>>> execution order. It can sometimes be a good idea to "restart and run >>>> all" in your notebook to reset the state and ensure everything runs >>>> again. >>>> >>>> Aaron Meurer >>>> >>>> On Mon, Dec 4, 2023 at 10:24 AM Mario Lemelin <math0...@gmail.com> wrote: >>>> > >>>> > Hello, >>>> > This is my first time. Just wondering if there is a command that I can >>>> > do when, in a jupyter notebook, when I want to go back one step (If I >>>> > did a bad algebraic manipulation for example). Thank you in advance for >>>> > your help. Mario >>>> > >>>> > -- >>>> > You received this message because you are subscribed to the Google >>>> > Groups "sympy" group. >>>> > To unsubscribe from this group and stop receiving emails from it, send >>>> > an email to sympy+un...@googlegroups.com. >>>> > To view this discussion on the web visit >>>> > https://groups.google.com/d/msgid/sympy/82c3aedb-215b-4083-a462-42bbc5684632n%40googlegroups.com. > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sympy+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/b8bf74c3-511c-49d6-b5e4-cd8ee5681e6en%40googlegroups.com. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAHVvXxSpDCuMbL3Y4vEscafgw3sHS7dFqPu%3D9RsrW7qxf7yYhA%40mail.gmail.com.
