NAME

cgstep - one step of conjugate gradient step


SYNOPSIS

OPERATOR:ierr= cgstep(forget,x,g,rr,gg)

CLOSE: call cgstep_close()


PARAMETERS

forget - logical
      Whether or not to forget previous step
x - real(:)
      Model
g - real(:)
      Gradient
rr - real(:)
      residual
gg - real(:)
      gradient mapped into residual space


DESCRIPTION

One step of conjugate gradient method


SEE ALSO

the cgmeth manpage, the cdstep manpage,the solver_reg manpage,the conjgrad manpage,the partan manpage


LIBRARY

geef90