|Rand.Real||Part of Rand module|
|Syntax|| Rand.Real : real|
|Description|| The Rand.Real function returns a pseudo-random number in the range zero to one. For example, if x is a real number, after x := Rand.Real, x would have a value such as 0.729548 or 0.352879.|
|Example|| This program repeatedly and randomly prints out Hi ho, hi ho or It's off to work we go.|
loop if Rand.Real > 0.5 then put "Hi ho, hi ho" else put "It's off to work we go" end if end loop
|Details|| The Rand.Real function sets its parameter to the next value of a sequence of pseudo-random real numbers that approximates a uniform distribution over the range 0<r <1.|
Each time a program runs, Rand.Real uses a different pseudo-random number sequence. To always get the same sequence (actually, to start the sequence at the same point), use the Rand.Set procedure.
To use several sequences of repeatable pseudo-random number sequences, use the Rand.Seed and Rand.Next procedures.
|Status|| Exported qualified.|
This means that you can only call the function by calling Rand.Real, not by calling Real.
|See also|| Rand.Int, Rand.Set, Rand.Seed and Rand.Next.|