ILOG CPLEX 10.2 User's Manual > Continuous Optimization > Solving Problems with Quadratic Constraints (QCP) > Solving with Quadratic Constraints

ILOG CPLEX allows you to solve your QCP models (that is, problems with quadratic constraints) through a simple interface, by calling the default optimizer.

With default settings, each of these approaches will result in the barrier optimizer being called to solve a continuous QCP.

The barrier optimizer is the only optimizer available to solve QCPs.