# cg-sys
Rust binding of fortran CG+ subroutine.
To know more about the condition to use the orginal Fortran routine please go [here](http://users.iems.northwestern.edu/~nocedal/lbfgsb.html)
#Reference
* J. C. Gilbert and J. Nocedal. Global Convergence Properties of Conjugate Gradient Methods for Optimization, (1992) SIAM J. on Optimization, 2, 1.