This package provides a random number generator. To load the package, enter the query
| ?- use_module(library(random)).
This library fully supports multiple SICStus run-times in a process.
random(
-Number)
Binds Number to a random float in the interval [0.0, 1.0).
Note that 1.0 will never be generated.
random(
+Lower,
+Upper,
-Number)
randseq(
+K,
+N,
-RandomSeq)
Generates an unordered set of K unique integers, chosen randomly in the
range 1..N. RandomSeq is not returned in any
particular order.
randset(
+K,
+N,
-RandomSet)
Generates an ordered set of K unique integers, chosen randomly
in the range 1..N. The set is returned in standard order.
getrand(
?State)
Tries to unify State with the term
rand(
X,Y,Z)
where X, Y, and Z are
integers describing the state of the random generator.
setrand(rand(
+X,
+Y,
+Z))
Sets the state of the random generator. X, Y, and Z
must be integers in the ranges [1,30269)
, [1,30307)
, and
[1,30323)
, respectively.