Dear Jill, Thank you very much for figuring it out. Since I did not have the patience you have (real time 65:55:43.65) to run the programme, I had aborted it. So logically this error message. But even with the instructions (maxiter=1000 maxfunc=5000), there is still no guarantee of a solution. Also, I must give you, greetings from Warren Kuhfeld. Best, Roy
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