asal
Posts:
2
Registered:
1/5/07


poisson equation with periodic boundary conditions using finite difference
Posted:
Jan 5, 2007 3:45 AM


Hello, I want to solve Poisson's equation on a 2d, n*n, rectangle with periodic b.c. How should I set up the matrix of coefficiets in finite differene? Ku=b, K=[2 1 0 0 ...0 0 1; 1 2 1 000.....000 ; ......; 1 000....0000 1 2 ] is singular, have 'n' zero eigen values. (Note: I am only allowed to use finite difference, and boundary conditions are PERIODIC).
Thank you, Farshid

