Hi Szymon, Thank you for reviewing my proposal. In the Lame coefficients formula in my proposal, I have raised the whole expression to the power half, which is equivalent to taking it's root. I think you might have missed that because it's in small font.
Was that the mistake you were referring or have I committed a mistake elsewhere? Sagar On Sunday, April 2, 2017 at 1:19:18 PM UTC+5:30, [email protected] wrote: > > 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/21a40c0b-d07b-470b-9708-622c102b2d5b%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
