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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 ...
Also apophthegm. A terse, pithy saying, akin to a proverb, maxim, or aphorism. aposiopesis A rhetorical device in which speech is broken off abruptly and the sentence is left unfinished. apostrophe A figure of speech in which a speaker breaks off from addressing the audience (e.g., in a play) and directs speech to a third party such as an opposing litigant or some other individual, sometimes ...
Root Meaning in English Origin language Etymology (root origin) English examples rad-, ras-scrape, shave: Latin: rādere, rāsus: abrade, abrasion, abrasive, corrade ...
This is a list of common chemical compounds with chemical formulae and CAS numbers, indexed by formula. This complements alternative listing at list of inorganic compounds . There is no complete list of chemical compounds since by nature the list would be infinite.
Root Meaning in English Origin language Etymology (root origin) English examples ba-[1](ΒΑ [2]): to step: Greek: βαίνειν (baínein), βατός (batós ...
The bag-of-words model (BoW) is a model of text which uses an unordered collection (a "bag") of words. It is used in natural language processing and information retrieval (IR). It disregards word order (and thus most of syntax or grammar) but captures multiplicity .
(Normally additional phonemic degrees of length are handled by the extra-short or half-long diacritic, i.e. e eˑ eː or ĕ e eː , but the first two words in each of the Estonian examples are analyzed as typically short and long, /e eː/ and /n nː/, requiring a different remedy for the additional words.)
The above lists all summands of order 6 or lower (i.e. those containing 6 or fewer X 's and Y 's). The X ↔ Y (anti-)/symmetry in alternating orders of the expansion, follows from Z(Y, X) = −Z(−X, −Y). A complete elementary proof of this formula can be found in the article on the derivative of the exponential map.