CPXcopyqpsep

The routine CPXcopyqpsep is used to copy the quadratic objective matrix Q for a separable QP problem. A separable QP problem is one where the coefficients of Q have no nonzero off-diagonal elements.

Note

CPLEX evaluates the corresponding objective with a factor of 0.5 in front of the quadratic objective term.

When you build or modify your model with this routine, you can verify that the results are as you intended by calling CPXcheckcopyqpsep during application development.

Example

 status = CPXcopyqpsep (env, lp, qsepvec);

A pointer to the CPLEX environment as returned by CPXopenCPLEX.

A pointer to a CPLEX problem object as returned by CPXcreateprob.

An array of length CPXgetnumcols(env,lp).qsepvec[0], qsepvec[1],..., qsepvec[numcols-1] should contain the quadratic coefficients of the separable quadratic objective.

The routine returns zero on success and nonzero if an error occurs.

CPXcopyqpsep

Parameters:

Returns:

env	A pointer to the CPLEX environment as returned by `CPXopenCPLEX`.
lp	A pointer to a CPLEX problem object as returned by `CPXcreateprob`.
qsepvec	An array of length `CPXgetnumcols(env,lp)`.`qsepvec[0], qsepvec[1]`,..., `qsepvec[numcols-1]` should contain the quadratic coefficients of the separable quadratic objective.