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(There are 13 columns, so two letters per cell exhausts the alphabet.) A traffic key consist of a digit (from 2 to 7) and a letter. The operator selects one of the first 6 columns using the key digit and then finds the row in which the key letter occurs. That row in the second set of columns is used to encipher and decipher BATCO messages.
Note that some words contain an ae which may not be written æ because the etymology is not from the Greek -αι-or Latin -ae-diphthongs. These include: In instances of aer (starting or within a word) when it makes the sound IPA [ɛə]/[eə] (air). Comes from the Latin āër, Greek ἀήρ. When ae makes the diphthong / eɪ / (lay) or / aɪ ...
The California Job Case was a compartmentalized box for printing in the 19th century, sizes corresponding to the commonality of letters. The frequency of letters in text has been studied for use in cryptanalysis, and frequency analysis in particular, dating back to the Arab mathematician al-Kindi (c. AD 801–873 ), who formally developed the method (the ciphers breakable by this technique go ...
Nine-letter words include flagfalls; eight-letter words include galahads and alfalfas. Since the bottom row contains no vowels, no standard words can be formed. [35] The longest word typable by alternating left and right hands is antiskepticism. [32] On a Dvorak keyboard, the longest "left-handed" words are epopoeia, jipijapa, peekapoo, and ...
In a particular column, only one variable is "1". In a particular row, only one variable is "1". On a particular diagonal line, one or no variable is "1". Although one can solve this problem by constructing OBDDs, it is more efficient to use ZDDs. Constructing a ZDD for the 8-Queens problem requires 8 steps from S1 to S8.
QWERTY, one of the few native English words with Q not followed by U, is derived from the first six letters of a standard keyboard layout. In English, the letter Q is almost always followed immediately by the letter U, e.g. quiz, quarry, question, squirrel. However, there are some exceptions.
Some words contain silent letters, which do not represent any sound in modern English pronunciation. Examples include the l in talk, half, calf, etc., the w in two and sword, gh as mentioned above in numerous words such as though, daughter, night, brought, and the commonly encountered silent e (discussed further below).
Players take turns: on a player's turn, they guess some five-letter word, and the other player announces how many letters in that guess match a unique letter in their secret word. For example, if the secret word is OTHER and the guess is PEACH, the E and H in PEACH match an E and an H in OTHER, so the announced result is "2". (Letters don't ...