I read in some article that nrtypes.h, nrutil.h, nrtypes_nr.h and nrutil_nr.h are almost all free. BUT, nr.h, if so, how can I download those free files ? can someone help me ?

thanks in advance

I read in some article that nrtypes.h, nrutil.h, nrtypes_nr.h and nrutil_nr.h are almost all free.
Here's the link: for these: NR Public Domain Downloads (http://www.nr.com/public-domain.html)


BUT, nr.h, if so, how can I download those free files The nr.h is not a free download.

Here's the thing: If you have the code for various Numerical Recipes routines, nr.h has their prototypes (and for Numerical Recipes version 2 C++, some namespace stuff). You can create your own version of nr.h simply enough, and just put in definitions just for the routines that you actually use.

There is a bit of discussion here: http://www.numerical-recipes.com/forum/showthread.php?t=42

The important point is that the header file isn't enough; you need the function implementations (source for the functions themselves).

Regards,

Dave