Syntax: Uni(minimum, maximum, stream)
The uniform distribution (continuous) is equally likely to take on any real number in the finite interval [minimum, maximum] (minimum >= 0.0 and maximum > minimum). The real numbers produced by a random-number generator (appear to) have a uniform distribution on the interval [0, 1].
Stream allows you to specify the random number stream for the distribution. There are 215 streams. Stream 1 is the default. See Seeds or Appendix D of the User's Guide for more information.