why the analytic hessian has affected to the convergence rate in fmincon using interior-point method?

I want to know the mathematics model in interior point method? why the analytic hessian has affected to the convergence rate?

Answer 1

[Matt J]

I want to know the mathematics model in interior point method?

That will take some reading:

http://www.mathworks.com/help/optim/ug/constrained-nonlinear-optimization-algorithms.html#brnpd5f

why the analytic hessian has affected to the convergence rate?

Basically, because the algorithm tries to take Newton steps at various places. An analytic calculation of the Hessian will be more accurate than its default approximation using finite differences, leading to more accurate computations of Newton steps....

[Chantrea Lean]

thank you very much sir.