about conjuate gradient approach

[wangyanemail <wangyanemail # - at - # dicp.ac.cn>]

CCLers:
   I know there is a method for fast transition state location in Dmol3.This
 method combines the classic linear and quadratic synchronous transit metnods
 with a conjuate gradient approach to refine the saddle point geometry.
   My question is how to refine the sassle point geometry with a conjuate
 gradient approach in Dmol3 .what is conjuate gradient approach. I cant find the
 option(conjuate gradient approach) in Dmol3.
  Any help is welcome.
 best regards
                   wangyanemail
             wangyanemail # - at - # dicp.ac.cn