RAND(3C)            UNIX Programmer's Manual             RAND(3C)

NAME
     rand, srand - random number generator

SYNOPSIS
     srand (seed)
     unsigned seed;

     rand ( )

HP-UX COMPATIBILITY
     Level:    HP-UX/RUN ONLY

     Origin:   System III

DESCRIPTION
     _R_a_n_d uses a multiplicative congruential random  number  gen-
     erator  with  period 2^15 to return successive pseudo-random
     numbers.

     The generator is reinitialized by calling _s_r_a_n_d  with  1  as
     argument.   It can be set to a random starting point by cal-
     ling _s_r_a_n_d with whatever number you like as the argument.