On Wed, Apr 7, 2010 at 12:21 AM, Piet de Jong <[email protected]> wrote: > One of the provided mathematics addons is LBFGS, the well known > mathematical minimization routine. > > The downloaded J etc interface rom the Jsoftware website, the provided > example appears to work fine on the given example. > > However I cannot understand the exact use of the routine. It seems that > large arrays are being passed but there is little explanation of the what > these arrays are. They are certainly different in "size" from what appears > to be required from the description of the FORTRAN routine. > > Can anyone explain how to eg apply this routine in relatively simple > circumstances?
I do not use that routine myself. However when I search jsoftware.com for lbfgs, I see a fair number of hits. And I wonder if there might be different versions with the same name. So, first off: Did you use J's package manager to get your copy? (And, are you using J6.02?) Also, did you read the comments that you see when you run open 'math/lbfgs' ? (The point of my questions is to remove ambiguities, I do not know enough yet to answer your questions.) Thank you, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
