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Thank you for your answer Michael. Ok, so that is my stupid mistake - I did not know that I have to set the NLP solver manually. Now, it works.

Thanks a lot again,
Frantisek

Hello, please, can you help me with my (probably very simple) problem? I wanted to solve a convex (quadratic) toy problem using the QCP solver. But, I realized that it doesn't work properly. In particular, it simply ignores the quadratic terms in the constraint (e.g. if I set the coefficient for x1 ...