I have great request and your help would be very thankful. I have written program to solve some problem in Physics.
Everything seems to be fine, but always the Warning Error 1 from DLINCG appears: "matrix is too ill-conditioned and inverse might not be accurate".
I tried some ways, but still this warning appears. The agreement with other results is good. The solution seems to be ok. However, I would like to solve this problem to be 100% sure about accuracy. Please, help me in this matter. I highly appreciate your help.