Re: Re: Membrane

*To*: mathgroup at smc.vnet.net*Subject*: [mg74442] Re: [mg74387] Re: Membrane*From*: gardyloo <gardyloo at mail.wsu.edu>*Date*: Wed, 21 Mar 2007 02:54:28 -0500 (EST)*References*: <etlpv8$r6j$1@smc.vnet.net> <200703200302.WAA14608@smc.vnet.net>

My reading of the question is that he's fixing the four sides of a rectangular section of membrane at a certain constant displacement (on three sides) and at F(x) (the fourth side), and needs a minimal-energy surface which satisfies those boundary conditions in the static case. If that's the case, and he can solve the problem analytically or numerically, he just needs a Plot3D statement with the arguments as (say) the Cartesian coordinates of the membrane projected on the x-y plane. Of course, I may be way off there. Curtis O. dh wrote: > Hi Nodar, > > your description is not good. A surface can in general not be defined by > > 4 curves (three lines and curve F(x)). What do you mean exactly? > > Daniel > > > > shubi at nusun.jinr.ru wrote: > > >> Dear All ! >> > > > > >> I wont create a 3D Graphical object as opaque membrane limited by the >> > > >> three lines and curve F(x) on the upper side. Then, compose new >> > > >> Graphic from the such objects. >> > > >> Please help me. >> > > >> Nodar Shubitidze >> > > >> Joint Institute for >> > > >> Nuclear Research >> > > >> Dubna, Moscow reg., >> > > >> Russia >> > > > > > > > > > -- ========================================================== Curtis Osterhoudt gardyloo at mail.remove_this.wsu.and_this.edu PGP Key ID: 0x088E6D7A Please avoid sending me Word or PowerPoint attachments See http://www.gnu.org/philosophy/no-word-attachments.html ==========================================================

**References**:**Re: Membrane***From:*dh <dh@metrohm.ch>