Building a model for a linear program (LP)

These routines support building a model for continuous optimization, such as linear programming (LP).

CPXXaddcols and CPXaddcols
The routine CPXXaddcols/CPXaddcols adds columns to a specified CPLEX problem object.
CPXXaddrows and CPXaddrows
The routine CPXXaddrows/CPXaddrows adds constraints to a specified CPLEX problem object.
CPXXcloneprob and CPXcloneprob
The routine CPXXcloneprob/CPXcloneprob can be used to create a new CPLEX problem object and copy all the problem data from an existing problem object to it.
CPXXcopylp and CPXcopylp
The routine CPXXcopylp/CPXcopylp copies data that define an LP problem to a CPLEX problem object.
CPXXcopylpwnames and CPXcopylpwnames
The routine CPXXcopylpwnames/CPXcopylpwnames copies LP data into a CPLEX problem object in the same way as the routine CPXXcopylp/CPXcopylp, but CPXXcopylpwnames/CPXcopylpwnames accepts additional arguments to specify the names of constraints and variables in the CPLEX problem object.
CPXXcopynettolp and CPXcopynettolp
The routine CPXXcopynettolp/CPXcopynettolp copies a network problem stored in a network problem object to a CPLEX problem object (as an LP).
CPXXcopyobjname and CPXcopyobjname
The routine CPXXcopyobjname/CPXcopyobjname copies a name for the objective function into a CPLEX problem object.
CPXXcopypnorms and CPXcopypnorms
The routine CPXXcopypnorms/CPXcopypnorms copies the primal steepest-edge norms to the specified LP problem object.
CPXXcreateprob and CPXcreateprob
The routine CPXXcreateprob/CPXcreateprob creates a CPLEX problem object in the CPLEX environment.
CPXXgetcoef and CPXgetcoef
The routine CPXXgetcoef/CPXgetcoef accesses a single constraint matrix coefficient of a CPLEX problem object.
CPXXgetcolindex and CPXgetcolindex
The routine CPXXgetcolindex/CPXgetcolindex searches for the index number of the specified column in a CPLEX problem object.
CPXXgetcolname and CPXgetcolname
Accesses a range of column names (or, equivalently, the variable names) of a CPLEX problem object.
CPXXgetcols and CPXgetcols
The routine CPXXgetcols/CPXgetcols accesses a range of columns of the constraint matrix of a CPLEX problem object.
CPXXgetnumcols and CPXgetnumcols
The routine CPXXgetnumcols/CPXgetnumcols accesses the number of columns in the constraint matrix, or equivalently, the number of variables in the CPLEX problem object.
CPXXgetnumnz and CPXgetnumnz
The routine CPXXgetnumnz/CPXgetnumnz accesses the number of nonzero elements in the constraint matrix of a CPLEX problem object, not including the objective function, quadratic constraints, or the bounds constraints on the variables.
CPXXgetnumrows and CPXgetnumrows
The routine CPXXgetnumrows/CPXgetnumrows accesses the number of rows in the constraint matrix, not including the objective function, quadratic constraints, or the bounds constraints on the variables.
CPXXgetobj and CPXgetobj
The routine CPXXgetobj/CPXgetobj accesses a range of objective function coefficients of a CPLEX problem object.
CPXXgetobjname and CPXgetobjname
The routine CPXXgetobjname/CPXgetobjname accesses the name of the objective row of a CPLEX problem object.
CPXXgetobjoffset and CPXgetobjoffset
The routine CPXXgetobjoffset/CPXgetobjoffset accesses the objective offset.
CPXXgetobjsen and CPXgetobjsen
The routine CPXXgetobjsen/CPXgetobjsen accesses whether the objective function sense of a CPLEX problem object is maximization or minimization.
CPXXgetprobname and CPXgetprobname
The routine CPXXgetprobname/CPXgetprobname accesses the name of the problem set via the call to CPXXcreateprob/CPXcreateprob.
CPXXgetprobtype and CPXgetprobtype
The routine CPXXgetprobtype/CPXgetprobtype accesses the problem type that is currently stored in a CPLEX problem object.
CPXXgetrhs and CPXgetrhs
The routine CPXXgetrhs/CPXgetrhs accesses the righthand side coefficients for a range of constraints in a CPLEX problem object.
CPXXgetrngval and CPXgetrngval
The routine CPXXgetrngval/CPXgetrngval accesses the RHS range coefficients for a set of constraints in a CPLEX problem object.
CPXXgetrowindex and CPXgetrowindex
The routine CPXXgetrowindex/CPXgetrowindex searches for the index number of the specified row in a CPLEX problem object.
CPXXgetrowname and CPXgetrowname
Accesses a range of row names (or, equivalently, the constraint names) of a CPLEX problem object.
CPXXgetrows and CPXgetrows
The routine CPXXgetrows/CPXgetrows accesses a range of rows of the constraint matrix, not including the objective function nor the bound constraints on the variables of a CPLEX problem object.
CPXXgetsense and CPXgetsense
The routine CPXXgetsense/CPXgetsense accesses the sense for a range of constraints in a CPLEX problem object.
CPXXgetslack and CPXgetslack
The routine CPXXgetslack/CPXgetslack accesses the slack values for a range of linear constraints.
CPXXgetub and CPXgetub
The routine CPXXgetub/CPXgetub accesses a range of upper bounds on the variables of a CPLEX problem object.
CPXXnewcols and CPXnewcols
The routine CPXXnewcols/CPXnewcols adds empty columns to a specified CPLEX problem object.
CPXXnewrows and CPXnewrows
The routine CPXXnewrows/CPXnewrows adds empty constraints to a specified CPLEX problem object.
CPXXopenCPLEX and CPXopenCPLEX
The routine CPXXopenCPLEX/CPXopenCPLEX initializes a CPLEX environment.
CPXXreadcopyprob and CPXreadcopyprob
The routine CPXXreadcopyprob/CPXreadcopyprob reads an MPS, LP, or SAV file into an existing CPLEX problem object.
CPXXtightenbds and CPXtightenbds
The routine CPXXtightenbds/CPXtightenbds changes the upper or lower bounds on a set of variables in a problem.

Parent topic: Simplex Optimizers in the CPLEX Callable Library (C API) Reference Manual