4.3BSD - /usr/man/cat3/drandm.0

RANDOM(3F)                                                          RANDOM(3F)


NAME
       random, drandm, irandm - better random number generator

SYNOPSIS
       function irandm (iflag)

       function random (iflag)

       double precision function drandm (iflag)

DESCRIPTION
       These  functions use random(3) to generate sequences of random numbers,
       and should be used rather than the older functions described in man  3f
       rand.   If  iflag  is non-zero, it is used as a new seed for the random
       number generator, and the first new random value is returned.

       Irandm returns positive integers in the range 0  through  2147483647  (
       2**31-1).   Random and drandm return values in the range 0. through 1.0
       by dividing the integer random number from random(3) by 2147483647 .

FILES
       /usr/lib/libF77.a

SEE ALSO
       random(3)


4.3 Berkeley Distribution        May 15, 1985                       RANDOM(3F)