Re: [sympy] Using the mechanics API

Ok but still if you get a specific requirement do let me know. On Wed, May 15, 2019, 04:59 Oscar Benjamin wrote: > 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

Re: [sympy] Using the mechanics API

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

Re: [sympy] Using the mechanics API

Oscar, This is the main tutorial: https://github.com/pydy/pydy-tutorial-human-standing Jason moorepants.info +01 530-601-9791 On Tue, May 14, 2019 at 3:00 PM Oscar Benjamin wrote: > Thanks Jason. Those links helped. > > I guess if the module is not intended for simpler problems then that >

Re: [sympy] Using the mechanics API

Thanks Jason. Those links helped. I guess if the module is not intended for simpler problems then that makes sense. I would say though that the documentation could benefit from more of a tutorial somewhere. I'll try to use it for a real problem at some point and then see what I think... --

[sympy] integral transform

There is a question here about integrating `cos(x)**2` wrt `sin(x)` -- which is something that is no longer permitted in current versions of SymPy and this is not a permitted

Re: [sympy] Using the mechanics API

Oscar, Also a specific answer to: > 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

Re: [sympy] Using the mechanics API

Oscar, There are some rolling disc examples here: https://github.com/pydy/pydy/tree/master/examples Note that the PyDy project started as an independent thing build on top of SymPy, then the symbolics were merged into sympy as the mechanic module and the numerics are now in the standalone PyDy

Re: [sympy] Gsoc Project idea " Efficient Equation ofMotionGenerationwith Python" discussion.

On Thu, 14 Mar 2019 at 21:19, Aaron Meurer wrote: > > I agree. The biggest challenge with symbolic matrices is expression > blow up. In some cases it is unavoidable, for instance, symbolic > eigenvalues/eigenvectors use the symbolic solutions to polynomials, > which are complicated in the general