This is an example code for non-convex QCQP problem.
The optimization problem is shown as follows:
min x^TPx + p^T x + r
s.t. x^TQx + q^T x + c <= 0
where inequality constraints can be more than one, and equality constraints can be written as inequality constraints.
The document/ is the optimization algorithm to solve this problem.
The code/ is matlab code reproduce.