I have some trouble using the "Constrained Nonlinear Optimization.vi"
Apart from the manual I could not find much information on the algorithm on the internet... It look like often my program gets stuck in a loop inside the subvi "isisubopt.vi" (L-->inf , matrix inversion results in a matrix of zeros). This happens with some datasets, not with others, but when it gets stuck, there is no possibility to leave the loop and thus I have to quit the vi.
Is there reason for this eternal loop, and it there any way to avoid this situation?