
NAME
     <type>ophestenes -  Function  to  solve  conjugate  gradient
     problem.

SYNOPSIS
     #include <<type>ophest.h>

DESCRIPTION
     <type>space      <type>ophestenes(<type>space       x,const
     <type>space & y,const <type>operator & A,int niter)

     <type>ophestenes runs the Hestenes conjugate gradient solver
     on the problem

     min || A x - y ||^2

     given x as an initial guess for  x.  The  solver  currently
     ignores  the initial guess. The solver runs for niter itera-
     tions, then returns its solution.

SEE ALSO
     <type>space, <type>operator, <type>opbook3

