Jacobian Matrix Calculation Routines

This section describes routines that compute the Jacobian matrix using the central difference algorithm. Jacobian matrix calculation is required to solve a nonlinear least squares problem and systems of nonlinear equations (with or without linear bound constraints). Routines for calculation of the Jacobian matrix have the "Black-Box" interfaces, where you pass the objective function via parameters. Your objective function must have a fixed interface.

Jacobian Matrix Calculation Routines
Routine Name	Operation
?jacobi_init	Initializes the solver.
?jacobi_solve	Computes the Jacobian matrix of the function on the basis of RCI using the central difference algorithm.
?jacobi_delete	Removes data.
?jacobi	Computes the Jacobian matrix of the fcn function using the central difference algorithm.
?jacobix	Presents an alternative interface for the ?jacobi function enabling you to pass additional data into the objective function.