Numerical Recipes are available in both C (ANSI as well as K&R versions) and Fortran under
There are 3 subdirectories;
recipes_f containing each distribution.
A list of available recipes may be found under
/usr/local/recipes/recipes_f/doc/RECIPES.LIST in the case of Fortran.
Compilation instructions may be found under
/usr/local/recipes/recipes_c-ansi/doc/COMPILING in the case of ANSI C.