Two quadratic relaxation problems (they are proof of concept for quadratic relaxation)
One quadratic optimization problem (also a proof of concept for quadratic optimization)
I also fixed the indentation of all the benchmark problems and removed some unnecessary constraint coefficient within the variables definitions (because they could lead users to confusion).
A few benchmarks were added:
I also fixed the indentation of all the benchmark problems and removed some unnecessary constraint coefficient within the variables definitions (because they could lead users to confusion).