| 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.
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| 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
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| 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.
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| Status | Exported qualified. This means that you can only call the function by calling Rand.Real, not by calling Real.
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| See also | Rand.Int, Rand.Set, Rand.Seed and Rand.Next.
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