Hi Sagar, I found mistake in your proposal. Lame coefficient are defined as you wrote, but you should also take a root from your formula. See at wikipedia: https://en.wikipedia.org/wiki/Curvilinear_coordinates#Lam.C3.A9_coefficients They are defined as a norm of vector Diff(r(q1,q2,q3), qi)
Szymon W dniu sobota, 1 kwietnia 2017 20:05:57 UTC+2 użytkownik Sagar Bharadwaj napisał: > > I have made the required changes in both the wiki and the doc. > Please look into the 'Differential Geometry Functions' subsection in > 'Implementation' section. > Also the 'June 15 - June 22' period in the Timeline. > > On Saturday, April 1, 2017 at 5:35:58 PM UTC+5:30, brombo wrote: >> >> You proposal is very good. My only suggestion is that you may want a >> class for vector differential operators (gradient operator). If the >> coordinate system constructor returns the gradient operator you could (in >> future) overload * and ^ operators so that if f is a scalar field and V a >> vector field and grad the vector operator then - >> >> gradient of scalar field = grad * f >> divergence of vector field = grad * V >> curl of vector field = grad ^ V >> >> then the Laplacian would be grad * (grad * f) >> >> >> >> On 04/01/2017 05:40 AM, Sagar Bharadwaj wrote: >> >> I am interested in Implementing multiple coordinate systems for Vectors >> in SymPy. >> I have completed the timeline and here is my proposal. Please Review it >> and give me you valuable suggestions. >> >> GitHub Wiki Page (Better formatting) >> <https://github.com/sympy/sympy/wiki/GSoC-2017-Application-Sagar-Bharadwaj-:-Implementation-of-multiple-types-of-coordinate-systems-for-vectors> >> >> Google Docs Link >> <https://docs.google.com/document/d/1znt2IQKZiwf-FpNxKX62uYg7qQZejyCQ8wt4IrPzqVc/edit#heading=h.y0exq3hxwset> >> -- >> 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 [email protected]. >> To post to this group, send email to [email protected]. >> 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/b940f17a-d895-4c50-bfd4-70ddd1489c93%40googlegroups.com >> >> <https://groups.google.com/d/msgid/sympy/b940f17a-d895-4c50-bfd4-70ddd1489c93%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> 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 [email protected]. To post to this group, send email to [email protected]. 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/427d56bb-172a-45d4-9a6c-91cb8479b349%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
