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Re: Re: Membrane


   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 !
>>     
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>> I wont create a 3D Graphical object as opaque membrane limited by the
>>     
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>> three lines and curve F(x) on the upper side. Then, compose new
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>> Graphic from the such objects.
>>     
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>> Please help me.
>>     
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>>                                                  Nodar Shubitidze
>>     
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>>                                                  Joint Institute for
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>> Nuclear Research
>>     
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>>                                                  Dubna, Moscow reg.,
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>> Russia
>>     
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>   


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