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tridiagonal system
Posted:
Apr 17, 2014 3:42 AM


I need a method for solving a linear system (x1..xn) of type
x1*(k11+k12/(x1+x2+..xn)) x2*k13 x3*k14 .... ... x2*(k22+k23/(x1+x2+..xn)) x3*k24 .... ... ..... x3*(k34+k35/(x1+x2+..xn))
and so on, size about 400 x 400 elements, I am unable to find a solution with Thomas or similar efficient methods cause diagonal elements contains K/(x1+x2+...+xn) which require separate processing, what am I missing here ? Is there any simple solution for these systems ? Which procedure to adopt in Matlab? Thanks for help.



