Fortran 90 versions of all the Numerical Recipes routines appear in the following

Chapters B1 through B20, numbered in correspondence with Chapters 1 through 20

in Volume 1. Within each chapter, the routines appear in the same order as in Volume

1, but not broken out separately by section number within Volume 1鈥檚 chapters.

There are commentaries accompanying many of the routines, generally following

the printed listing of the routine to which they apply. These are of two kinds:

issues related to parallelizing the algorithm in question, and issues related to the

Fortran 90 implementation. To distinguish between these two, rather different, kind