There are one or two programs which use Numerical Recipes in C routines, and the library libnumrec.a should be present in $NEMOLIB, or be symbolically/logically linked to the real one if references remain unresolved during linking. Note we might want to use double instead of float. Some other routines use IMSL, and we also supply a few emulated IMSL routines in $NEMO/src/kernel/misc/imsl.c