Quadratic expression constructor. Create an empty quadratic expression, or copy an existing expression.

GRBQuadExpr GRBQuadExpr ( )

Create an empty quadratic expression.

Return value:

An empty expression object.

GRBQuadExpr GRBQuadExpr ( GRBLinExpr le )

Initialize a quadratic expression from an existing linear expression.


le: Existing linear expression to copy.

Return value:

Quadratic expression object whose initial value is taken from the input linear expression.

GRBQuadExpr GRBQuadExpr ( GRBQuadExpr qe )

Copy an existing quadratic expression.


qe: Existing expression to copy.

Return value:

A copy of the input expression object.