Procedure GMP::Coefficient::SetQuadratic(GMP, column1, Column2, value)

GMP::Coefficient::SetQuadratic

The procedure GMP::Coefficient::SetQuadratic sets the value of a quadratic product between two columns in a generated mathematical program.

GMP::Coefficient::SetQuadratic(
     GMP,            ! (input) a generated mathematical program
     column1,        ! (input) a scalar value or column number
     column2,        ! (input) a scalar value or column number
     value           ! (input) a scalar numerical value
     )

Arguments

GMP

An element in AllGeneratedMathematicalPrograms.

column1,column2

A scalar reference to an existing column in the model or the number of that column in the range \(\{ 0 .. n-1 \}\) where \(n\) is the number of columns in the matrix.

value

A scalar numerical value indicating the value for the quadratic term.

Return Value

The procedure returns 1 on success, or 0 otherwise.

Note

  • If column1 equals column2 then AIMMS multiplies the quadratic coefficient by 0.5 before it is stored (and passed to the solver).

  • This procedure operates on the objective. To set a quadratic coefficient in a row the procedure GMP::QuadraticCoefficient::Set should be used.

See also

The routines GMP::Coefficient::GetQuadratic and GMP::QuadraticCoefficient::Set.