Function MatrixModifyLeftHandSide(MP, row, value)

MatrixModifyLeftHandSide

The procedure MatrixModifyLeftHandSide changes the left-hand-side of a row in the matrix.

MatrixModifyLeftHandSide(
     MP,             ! (input) a mathematical program
     row,            ! (input) a scalar value
     value           ! (input) a numerical expression
     )

Arguments

MP

A mathematical program that was previously solved. The mathematical program should be a linear or mixed-integer linear programming model.

row

A scalar reference to an existing ranged row in the matrix.

value

The new value that should be assigned to the left-hand-side of the row. This value should be unequal to NA, UNDF and INF (but might be -INF).

Note

• After a call to MatrixSolve AIMMS checks for each modified ranged row whether or not the left-hand-side value is valid, that is, the left-hand-side value should be unequal to INF.

• As of AIMMS release 3.5, the matrix manipulation procedures have become deprecated. New projects should use the GMP library instead. Please refer to Table 5 for a mapping of the matrix manipulation procedures to corresponding GMP procedures.

See also

The procedures MatrixModifyRightHandSide, MatrixSolve. Matrix manipulation routines are discussed in more detail in Implementing Advanced Algorithms for Mathematical Programs of the Language Reference.