I tried the method suggested by Joe but am getting the same message. The worksheet is here,
1. Is it really column 6 of ysol[2,1] that should be used, or is it column 5?
This depends on the system.Probably I had an error in the file I uploaded in the column number.In general, if I have n equations the column number is n+1.
2. Should the normed comparison inside objective SS, between data Vector Exp and computed Vector V, involve fewer entries when the computed solution detects a singularity?
This is a very good question to which I have found no solution as to how to override this.What I need is if dsolve detects a singularity is to put a very high value for epsilon(t) and move forward.With this my norm stays high and the solution can continue.Any suggestions?
3. Should SS return infinity when no solution comes from dsolve?
Same as above.