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  2. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/Luhn_algorithm

    Luhn algorithm. The Luhn algorithm or Luhn formula, also known as the " modulus 10" or "mod 10" algorithm, named after its creator, IBM scientist Hans Peter Luhn, is a simple check digit formula used to validate a variety of identification numbers. It is described in US patent 2950048A, granted on 23 August 1960. [1]

  3. Block cipher mode of operation - Wikipedia

    en.wikipedia.org/wiki/Block_cipher_mode_of_operation

    Note: CTR mode (CM) is also known as integer counter mode (ICM) and segmented integer counter (SIC) mode. Like OFB, counter mode turns a block cipher into a stream cipher. It generates the next keystream block by encrypting successive values of a "counter". The counter can be any function which produces a sequence which is guaranteed not to ...

  4. Modular arithmetic - Wikipedia

    en.wikipedia.org/wiki/Modular_arithmetic

    Adding 4 hours to 9 o'clock gives 1 o'clock, since 13 is congruent to 1 modulo 12. In mathematics, modular arithmetic is a system of arithmetic for integers, where numbers "wrap around" when reaching a certain value, called the modulus. The modern approach to modular arithmetic was developed by Carl Friedrich Gauss in his book Disquisitiones ...

  5. List of United States fighter aircraft - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    2 converted from VE-7 for U.S. Army; 22 built for the U.S. Army, 17 built for the U.S. Navy. Unknown Unknown 24 17 HA: Fighter/mail plane: Curtiss Aeroplane and Motor Company 1918 Unknown 6 18T Kirkham: Two-seated fighter triplane Curtiss Engineering Corporation: Intended to protect bombing aircraft over France. 1918 1919 Unknown M-8

  6. Final Fantasy: Unlimited - Wikipedia

    en.wikipedia.org/wiki/Final_Fantasy:_Unlimited

    Final Fantasy: Unlimited [a] (FF:U) is an anime television series based on Square Enix's popular Final Fantasy role-playing video game franchise.Produced by Gonzo, avex mode, TV Tokyo, Dentsu and GDH, the series was directed by Mahiro Maeda, with Atsuhiro Tomioka writing the scripts, Kazuto Nakazawa and Camel 7 designing the characters and Shirō Hamaguchi and Akifumi Tada composing the music.

  7. Modulo - Wikipedia

    en.wikipedia.org/wiki/Modulo

    Modulo. In computing, the modulo operation returns the remainder or signed remainder of a division, after one number is divided by another (called the modulus of the operation). Given two positive numbers a and n, a modulo n (often abbreviated as a mod n) is the remainder of the Euclidean division of a by n, where a is the dividend and n is the ...

  8. Smith & Wesson Model 10 - Wikipedia

    en.wikipedia.org/wiki/Smith_&_Wesson_Model_10

    The Smith & Wesson Model 10, previously known as the Smith & Wesson .38 Hand Ejector Model of 1899, the Smith & Wesson Military & Policeor the Smith & Wesson Victory Model, is a K-frame[2]revolverof worldwide popularity. In production since 1899, the Model 10 is a six-shot, .38 Special, double-actionrevolver with fixed sights.

  9. Lockheed Model 10 Electra - Wikipedia

    en.wikipedia.org/wiki/Lockheed_Model_10_Electra

    Lockheed Model 10 Electra. The Lockheed Model 10 Electra is an American twin-engined, all-metal monoplane airliner developed by the Lockheed Aircraft Corporation, which was produced primarily in the 1930s to compete with the Boeing 247 and Douglas DC-2. The type gained considerable fame as one was flown by Amelia Earhart and Fred Noonan on ...