RANF, RANGET, RANSET (3sciport)

Generate pseudo-random number sequences

SYNOPSIS

  result  = RANF()
  boolean = RANGET( [arg] )
  result  = RANSET( [arg] )

FUNCTION VALE

  ranf            Real.
                  The next in a sequence of pseudo-random numbers.

  ranget          Boolean. (Integer.)
                  The current 48 bit seed.

  ranset          Null. (Integer.)
                  A non-sense value to be ignored.

ARGUMENTS

  arg             Boolean. (Integer, Real.)
                  A 64 bit datum whose lower 48 bits become the new seed.

DESCRIPTION

  RANF    The external real function RANF returns the next member in a
          sequence of pseudo-random numbers. Values returned by RANF lie
          in the open interval (0,1). RANF requires no argument and ignores
          any that are passed.

  RANGET  The external routine RANGET returns the current seed. If the
          optional argument is passed, RANGET also returns the current
          seed in the argument. RANGET may be used as a subroutine or a
          function. When used as a subroutine, the optional argument should
          be used.

  RANSET  The external routine RANSET sets or resets the current value of
          the seed. If the optional argument is not used or its value is
          zero, the seed is reset to its default value. Otherwise, the
          lower 48 bits of arg become the new seed. RANSET may be used as
          either a subroutine or a function.

  For equations and other information, see Volume 3: UNICOS Math and
  Scientific Library Reference Manual SR-2081 7.0, Cray Research, Inc.