I have a question concerning the example 'rolling disc' in sympy- physics.mechanics. It seems to me, this is really a pendulum totation around the fixed contact pount C. I understand that rolling means: contact point has zero speed in N, but unclear to me how to get from the 'pendulum to the rolling disc. When I integrate the example numerically, it seems to confirm my feel that this is really a pendulum Thanks for any help!
a I have a que Oscar schrieb am Mittwoch, 15. Mai 2019 um 01:29:50 UTC+2: > Hi Vishesh, > > I have no plans to work on anything here but of course you can feel > free to contribute. Take a look at the module and see if there is > something that you think can be improved. There's always something > that can be improved so it's just a question of finding something that > is worth doing and that you can do yourself. > > -- > Oscar > > On Mon, 13 May 2019 at 21:48, Vishesh Mangla <manglav...@gmail.com> wrote: > > > > Hey,I also love physics and math and would like to work on the changes > which you want to include.Can I get included in this?I ‘ve chemistry as my > subject in university but that too deals with a lot of physics Hermitian > mostly but I know lagrangian too.So please let me make it. If you remember > you helped me merge my first pull request but still one was not enough to > get me enough experience to get good with it and I require help to get a > few more merged. > > > > > > > > Sent from Mail for Windows 10 > > > > > > > > From: Oscar Benjamin > > Sent: 14 May 2019 02:12 > > To: sympy > > Subject: [sympy] Using the mechanics API > > > > > > > > Hi all, > > > > > > > > I haven't really looked much at SymPy's mechanics module even though > > > > mechanics is very much one of my interests and something that I like > > > > to think I know a bit about. Today I finally took a look at it and I > > > > found the whole API surprisingly complicated. I teach mechanics to > > > > undergraduate students but I'm not sure if I would know how to teach > > > > my students to use the mechanics module as it is now... > > > > > > > > Firstly I looked through the documentation here: > > > > https://docs.sympy.org/latest/modules/physics/mechanics/index.html > > > > Is there any other guide/documentation that explains the general ideas > > > > more simply with examples? > > > > > > > > Suppose that I want to think about a simple 2D problem with a disc > > > > rolling down a surface inclined at angle beta with (Coulomb) friction > > > > coefficient mu. I want to know when/whether the disc will stick or > > > > slip and get the equations of motion for each case. How would I go > > > > about doing that using the mechanics module? > > > > > > > > -- > > > > Oscar > > > > > > > > -- > > > > 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 post to this group, send email to sy...@googlegroups.com. > > > > Visit this group at https://groups.google.com/group/sympy. > > > > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/CAHVvXxQXtAd_HGwTqaKrpDqQC_mNcyZAFgPrVe8Sq_hPwT6H0w%40mail.gmail.com > . > > > > For more options, visit https://groups.google.com/d/optout. > > > > > > > > -- > > 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 post to this group, send email to sy...@googlegroups.com. > > Visit this group at https://groups.google.com/group/sympy. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/5cd9d817.1c69fb81.1bcd0.8bad%40mx.google.com > . > > For more options, visit https://groups.google.com/d/optout. > -- 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/55807590-992a-41fe-b36e-0f50e3b1f415n%40googlegroups.com.
