Blurb::
Identify which quasi-Hessian corresponds to which response
Description::
The \c id_analytic_hessians list
specifies by number the functions which have analytic Hessians, and
the \c id_numerical_hessians and \c id_quasi_hessians lists specify by
number the functions which must use numerical Hessians and
secant Hessian updates, respectively. Each function identifier,
from 1 through the total number of functions, must appear once and
only once within the union of the \c id_analytic_hessians, \c
id_numerical_hessians, and \c id_quasi_hessians lists. 

Topics::	objective_function_pointer
Examples::
Theory::
Faq::
See_Also::	responses-mixed_hessians-id_numerical_hessians, responses-mixed_hessians-id_analytic_hessians 
