addConstraint           Add a new constraint to a LP or MIP
addVariable             Add a new variable to a LP or MIP
checkDims               Check the consistency of the dimensions of a LP
                        or MIP
lpmodeler               Modeler for linear programs (LP) and mixed
                        integer programs (MIP)
mipSolve                Solve a LP or a MIP
newProblem              Create a new LP or MIP
print.lpmodeler         Print a LP or MIP problem
setCoeff                Set the coefficient of a variable in a
                        contraint of a LP or MIP given their indexes
setPoint                Set the coefficient of a variable in a
                        contraint of a LP or MIP given their names
