
NAME
     <type>opbook3 - Function to solve conjugate  gradient  prob-
     lem.

SYNOPSIS
     #include <<type>opbook3.h>

DESCRIPTION
     <type>space <type>opbook3(<type>space x,const <type>space& y,
                               const <type>operator & A,int niter)

     <type>opbook3  runs a conjugate gradient solver on the prob-
     lem

     min || A x - y ||^2

     given x as an initial guess for  x.  The  solver  runs  for
     niter iterations, then returns its solution.

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

