Sha256: 6c4a92c5ff1b244f888c2a04ab294775b4a24db888b86236b87e8fbd9d6d6b8e
Contents?: true
Size: 368 Bytes
Versions: 9
Compression:
Stored size: 368 Bytes
Contents
require 'valvat/checksum'
class Valvat
module Checksum
class DE < Base
M = 10
N = 11
def check_digit
prod = M
figures.each do |fig|
sum = (prod + fig).modulo(M)
sum = M if sum == 0
prod = (2*sum).modulo(N)
end
chk = N - prod
chk == 10 ? 0 : chk
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems