`scipy.optimize._trustregion_exact:IterativeSubproblem`

source: /scipy/optimize/_trustregion_exact.py :190

Signature

   class     IterativeSubproblem (    x    ,    fun    ,    jac    ,    hess    ,    hessp    =  None   ,    k_easy    =  0.1   ,    k_hard    =  0.2   ,    maxiter    =  None     )

Members

__init__
_initial_values
solve

Summary

Quadratic subproblem solved by nearly exact iterative method.

Notes

This subproblem solver was based on ^[1], ^[2] and ^[3], which implement similar algorithms. The algorithm is basically that of ^[1] but ideas from ^[2] and ^[3] were also used.

Aliases

scipy.optimize._trustregion_exact.IterativeSubproblem