
    h$,f                      6    d dl Zd dlmZ d dlmZ d dlmZ d Zy)    N)fmin_ncg)assert_array_almost_equal)
_newton_cgc            	         t         j                  j                  d      } | j                  d      t        j                  d      }fd}fdfd}fd}t        t        |||d	
      d   t        |||             y )Nr   )
   r   )sizer   c                 N    j                  |       }d|j                  |      z  S )Ng      ?)dot)xAxAs     Alib/python3.12/site-packages/sklearn/utils/tests/test_optimize.pyfuncztest_newton_cg.<locals>.func   s#    UU1XbXXb\!!    c                 X    j                   j                  j                  |             S NTr
   r   r   s    r   gradztest_newton_cg.<locals>.grad   s    sswwquuQx  r   c                     |j                  j                  j                  j                  | j                                           S r   )r
   r   all)r   pr   s     r   hessztest_newton_cg.<locals>.hess   s-    uuQSSWWQUU1557^,--r   c                      |       fdfS )Nc                 X    j                   j                  j                  |             S r   r   r   s    r   <lambda>z3test_newton_cg.<locals>.grad_hess.<locals>.<lambda>   s    !##''!%%("3 r    )r   r   r   s    r   	grad_hessz!test_newton_cg.<locals>.grad_hess   s    Aw333r   g|=)tol)fx0fprimefhess_p)nprandomRandomStatenormalonesr   r   r   )rngr"   r   r   r   r   r   s        @@r   test_newton_cgr+      sw     ))


"C


!A	B"!.4 9dD"%8;4BtT:r   )	numpyr%   scipy.optimizer   sklearn.utils._testingr   sklearn.utils.optimizer   r+   r   r   r   <module>r0      s     # < -r   