cgmeth - conjugate gradient method
call cgtest( x, yy, rr, fff, niter)
real(:)
real(:)
real(:)
real(:)
setup of conjugate gradient descent, minimize SUM rr(i)**2 nx rr(i) = sum fff(i,j) * x(j) - yy(i) j=1
the matmult manpage, the cgstep manpage,the solver manpage
geef90