Callback Implementations */

Get version of Ipopt library. Gives the value of IPOPT_VERSION_MAJOR, IPOPT_VERSION_MINOR, and IPOPT_VERSION_RELEASE that were used when the Ipopt li

When LBFGS hessian approximation is used, this method should be overloaded. @param num_nonlin_vars number of nonlinear variables and length of pos_no

When LBFGS hessian approximation is used, this method should be overloaded. @return number of nonlinear variables, a negative value indicates that al

Method for obtaining the name of the NL file and the options set from AMPL * * @return a pointer to a char* with the name of the stub *

Method to request scaling parameters. * * This is only called if the options are set to retrieve user scaling, * that is, if nlp_scaling_m

Method to request meta data for the variables and the constraints. * * This method is used to pass meta data about variables or constraints to

In this function all problem sizes, bounds and initial guess should be initialized. @param n the problem size @return true if the given size is vali

Intermediate Callback method for the user. * * This method is called once per iteration (during the convergence check), * and can be used

Intermediate Callback method for the user. This method is called once per iteration (during the convergence check), and can be used to obtain informa

Set options specified in R object opts in IpoptApplcation app. * * If we set the option to approximate the Hessian, then IpoptRNLP * needs to know

Functions to load R Objects into IpoptRProblem

@name Normal step set and accessor methods */ @{

@name Tangential step set and accessor methods */ @{