QELEMS

If the matrix is in a presolved state, this attribute returns the number of quadratic elements in the presolved matrix. If you require the value for the original matrix, make sure you obtain the value when the matrix is not presolved. The PRESOLVESTATE attribute can be used to test if the matrix is presolved or not. See also Working with Presolve.

Description	Number of quadratic elements in the matrix.
Type	Integer
Notes	If the matrix is in a presolved state, this attribute returns the number of quadratic elements in the presolved matrix. If you require the value for the original matrix, make sure you obtain the value when the matrix is not presolved. The PRESOLVESTATE attribute can be used to test if the matrix is presolved or not. See also Working with Presolve.
Set by routines	XPRSchgmqobj, XPRSchgqobj, XPRSloadqglobal, XPRSloadqp.