CPXXbinvarow and CPXbinvarow

The routine CPXXbinvarow/CPXbinvarow computes the i-th row of BinvA where Binv represents the inverse of the matrix B and juxtaposition specifies matrix multiplication.

int  CPXXbinvarow( CPXCENVptr env, CPXCLPptr lp, CPXDIM i, double * z )

int  CPXbinvarow( CPXCENVptr env, CPXCLPptr lp, int i, double * z )

Description

Warning:

This is an advanced routine. Advanced routines typically demand a thorough understanding of the algorithms used by CPLEX. Thus they incur a higher risk of incorrect behavior in your application, behavior that can be difficult to debug. Therefore, the team encourages you to consider carefully whether you can accomplish the same task by means of other Callable Library routines instead.

The routine CPXXbinvarow/CPXbinvarow computes the i-th row of BinvA where Binv represents the inverse of the matrix B and juxtaposition specifies matrix multiplication. In other words, it computes the i-th row of the tableau.

Arguments

env
The pointer to the CPLEX environment, as returned by CPXXopenCPLEX/CPXopenCPLEX.
lp
A pointer to a CPLEX LP problem object, as returned by CPXXcreateprob/CPXcreateprob.
i
An integer that specifies the index of the row to be computed.
z
An array containing the i-th row of BinvA. The array must be of length at least equal to the number of columns in the problem.

Return

The routine returns 0 (zero) if successful and nonzero if an error occurs.