Check Digit
The check digit is calculated from digits 1-11. It is derived from the sum of the numbers that arise when the digits are alternately multiplied by 2 and 1; the difference of this sum from the next multiple of ten produces the check digit (for examples of this see wagon numbers).
Read more about this topic: UIC Identification Marking For Tractive Stock
Famous quotes containing the words check and/or digit:
“Unless you become more watchful in your states and check the spirit of monopoly and thirst for exclusive privileges you will in the end find that ... the control over your dearest interests has passed into the hands of these corporations.”
—Andrew Jackson (1767–1845)
“Bless my soul, Sir, will you Britons not credit that an American can be a gentleman, & have read the Waverly Novels, tho every digit may have been in the tar-bucket?”
—Herman Melville (1819–1891)