User talk:Sb~enwikibooks/Playground1

Im wondering if the Author is still out there. I do have some questions: If i try the direct scheme it is unstable. (plotting the results with surf)

1) Since this is an explicit scheme how do you set the CFL condition? 2) Why do you don´t use a sparse matrix ? 4) Why do you use \ and not LU-decomposition ?

Have you tried a testcase from Literature ?

Thanks

M.