This library is a C port of the implementation of Limited-memory 
Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) method written by Jorge Nocedal.
The original FORTRAN source code is available at: 
http://www.ece.northwestern.edu/~nocedal/lbfgs.html

WWW:	http://www.chokkan.org/software/liblbfgs/