Re: poisson equation

*To*: mathgroup at smc.vnet.net*Subject*: [mg43842] Re: poisson equation*From*: sean_incali at yahoo.com (sean kim)*Date*: Wed, 8 Oct 2003 04:48:02 -0400 (EDT)*References*: <blr1u8$3hr$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

i bought one. :D well boththe textbook and the companion. got the textbook on amazon for insanely low price. ( i'm so stoked) can't wait for it to get here. apparently, wolfram has a "required" two-day turn around time for their book orders. what's with that? Selwyn Hollis <sh2.7183 at misspelled.erthlink.net> wrote in message news:<blr1u8$3hr$1 at smc.vnet.net>... > I am loath to plug my own work in this forum, but since you asked for a > reference... > You will find a reasonably thorough treatment of such problems in the > insanely low priced A Mathematica Companion for Differential Equations: > > http://store.wolfram.com/view/book/ISBN0130463299.str > > ----- > Selwyn Hollis > http://www.math.armstrong.edu/faculty/hollis > > > On Friday, October 3, 2003, at 02:28 AM, K L wrote: > > > I am trying to solve poisson equation: > > > > diff(diff(u(y,z),y),y) + diff(diff(u(y,z),z),z) = 1 > > > > using separation of variables method. > > > > The boundary conditions for the problem are: > > > > u(1,z)=0 > > u(-1,z)=0 > > u(y,1)=0 > > u(y,-1)=0 > > > > > > can you please guide me to a good reference which will help me in > > solving this problem using separation of variables. > > > > Do you know how to solve this equation using mathematica > > > > > >