routine rand

Documentation for routine rand assembled from the following types:

language documentation Terms

From Terms

(Terms) term rand

Returns a pseudo-random Num in the range 0..^1.

class Cool

From Cool

(Cool) method rand

Defined as:

method rand()

Coerces the invocant to Num and returns a pseudo-random value between zero and the number.

say 1e5.rand;           # OUTPUT: «33128.495184283␤» 

role Real

From Real

(Real) routine rand

sub term:<rand> (--> Num:D)
method rand(Real:D: --> Real:D)

Returns a pseudo-random number between zero (inclusive) and the number (non-inclusive). The Bridge method is used to coerce the Real to a numeric that supports rand method.

The term form returns a pseudo-random Num between 0e0 (inclusive) and 1e0 (non-inclusive.)

class Num

From Num

(Num) method rand

method rand(Num:D: --> Num)

Returns a pseudo random number between 0 and the invocant.

class Range

From Range

(Range) method rand

Defined as:

method rand(Range:D --> Num:D)

Returns a pseudo-random value belonging to the range.

say (1^..5).rand;                              # OUTPUT: «1.02405550417031␤» 
say (0.1..0.3).rand;                           # OUTPUT: «0.2130353370062␤»