class Keisan::Functions::Rand
Public Class Methods
new()
click to toggle source
# File lib/keisan/functions/rand.rb, line 4 def initialize @name = "rand" @arity = ::Range.new(1,2) end
Public Instance Methods
call(context, *args)
click to toggle source
Single argument: integer in range [0, max) Double argument: integer in range [min, max)
# File lib/keisan/functions/rand.rb, line 11 def call(context, *args) case args.size when 1 context.random.rand(args.first) when 2 context.random.rand(args.first...args.last) else raise Exceptions::InvalidFunctionError.new end end