NAME

rand, drand, irand − return random values

SYNOPSIS

function irand (iflag) function rand (iflag) double precision function drand (iflag) integer∗4 iflag

DESCRIPTION

These functions use random(3) to generate sequences of random numbers.
If iflag is ’0’, the generator returns the next random number in the sequence. 
If iflag is ’1’, the generator is restarted and the first random value is returned. 
If iflag is otherwise non-zero, it is used as a new seed for the random number generator, and the first new random value is returned.  The three functions share the same 256 byte state array. 

irand returns positive integers in the range 0 through 2147483647. 

rand and drand return values in the range 0.0 through 1.0 . 

FILES

/usr/lang/SC0.0/libF77.a

SEE ALSO

random(3)

Sun Release 4.1  —  Last change: 13 November 1989