MIQCP - matrix is not positive semi-definite

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WandaW
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MIQCP - matrix is not positive semi-definite

Post by WandaW » 3 months ago

Dear GAMS-Community,

I am new for GAMS and trying to solve a non-linear problem (quadratic objective function and quadratic constraint), my code is attached. Running the code I receive the answer "Q matrix is not positive semi-definite (PSD)". If I do not integrate the quadratic constraint (ZahlBer) it works - but unfortunately I have no idea why.

I would be very happy for any advice!

Thank you in advance
WandaW
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MIQCP_Wanda.gms
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