class RQRCode::QRMath
Constants
- EXP_TABLE
- LOG_TABLE
Public Class Methods
gexp(n)
click to toggle source
# File lib/rqrcode/qrcode/qr_math.rb, line 47 def gexp(n) while n < 0 n = n + 255 end while n >= 256 n = n - 255 end EXP_TABLE[n] end
glog(n)
click to toggle source
# File lib/rqrcode/qrcode/qr_math.rb, line 41 def glog(n) raise QRCodeRunTimeError, "glog(#{n})" if ( n < 1 ) LOG_TABLE[n] end