examples/rosettacode/random_numbers.nit

   1 #!/usr/bin/env nit
   2 #
   3 # This file is part of NIT ( http://www.nitlanguage.org ).
   4 # This program is public domain
   5
   6 # Task: Random numbers
   7 #
   8 # See: <http://rosettacode.org/wiki/Random_numbers>
   9 module random_numbers
  10
  11 # Uniform distribution, (0..1]
  12 fun drand: Float do return 1.0.rand
  13
  14 # Pseudorandom numbers with a mean of 1.0 and a standard deviation of 0.5
  15 fun random_normal: Float do return (-2.0 * drand.log).sqrt * (2.0 * pi * drand).cos
  16
  17 for i in [0..1000] do print random_normal