Added
- Added functions
final_approx_hessian()andfinal_approx_inverse_hessian()toLBFGSSolverto retrieve the final approximate Hessian information (#42, #43) - Added CMake scripts to build examples (#38), contributed by @pjknowles
final_approx_hessian() and final_approx_inverse_hessian() to LBFGSSolver to retrieve the final approximate Hessian information (#42, #43)