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  2. Mnemonic major system - Wikipedia

    en.wikipedia.org/wiki/Mnemonic_major_system

    Mnemonic major system. The major system (also called the phonetic number system, phonetic mnemonic system, or Herigone's mnemonic system) is a mnemonic technique used to help in memorizing numbers. The system works by converting numbers into consonants, then into words by adding vowels. The system works on the principle that images can be ...

  3. Alphabetic numeral system - Wikipedia

    en.wikipedia.org/wiki/Alphabetic_numeral_system

    An alphabetic numeral system employs the letters of a script in the specific order of the alphabet in order to express numerals. In Greek, letters are assigned to respective numbers in the following sets: 1 through 9, 10 through 90, 100 through 900, and so on. Decimal places are represented by a single symbol.

  4. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]

  5. Letter frequency - Wikipedia

    en.wikipedia.org/wiki/Letter_frequency

    Letter frequency is the number of times letters of the alphabet appear on average in written language. Letter frequency analysis dates back to the Arab mathematician Al-Kindi ( c. 801 –873 AD), who formally developed the method to break ciphers. Letter frequency analysis gained importance in Europe with the development of movable type in 1450 ...

  6. Phoneword - Wikipedia

    en.wikipedia.org/wiki/Phoneword

    Phonewords are mnemonic phrases represented as alphanumeric equivalents of a telephone number. [1] In many countries, the digits on the telephone keypad also have letters assigned. By replacing the digits of a telephone number with the corresponding letters, it is sometimes possible to form a whole or partial word, an acronym, abbreviation, or ...

  7. Alphabetical order - Wikipedia

    en.wikipedia.org/wiki/Alphabetical_order

    The next three words come after Aster because their fourth letter (the first one that differs) is r, which comes after e (the fourth letter of Aster) in the alphabet. Those words themselves are ordered based on their sixth letters (l, n and p respectively). Then comes At, which differs from the preceding words in the second letter (t comes ...

  8. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    Using all numbers and all letters except I and O; the smallest base where ⁠ 1 / 2 ⁠ terminates and all of ⁠ 1 / 2 ⁠ to ⁠ 1 / 18 ⁠ have periods of 4 or shorter. 35: Covers the ten decimal digits and all letters of the English alphabet, apart from not distinguishing 0 from O. 36: Hexatrigesimal [54] [55]

  9. How To Write Numbers in Words on a Check - AOL

    www.aol.com/write-numbers-words-check-000044077.html

    Write the date in the upper right corner. Write the recipient’s name on the line next to “Pay to the order of.”. Write the amount in numbers in the box with the dollar sign. On the row ...