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  2. Sentence clause structure - Wikipedia

    en.wikipedia.org/wiki/Sentence_clause_structure

    Sentence 1 is an example of a simple sentence. Sentence 2 is compound because "so" is considered a coordinating conjunction in English, and sentence 3 is complex. Sentence 4 is compound-complex (also known as complex-compound). Example 5 is a sentence fragment. I like trains. I don't know how to bake, so I buy my bread already made.

  3. Q (number format) - Wikipedia

    en.wikipedia.org/wiki/Q_(number_format)

    Q numbers are a ratio of two integers: the numerator is kept in storage, the denominator is equal to 2 n. Consider the following example: The Q8 denominator equals 2 8 = 256; 1.5 equals 384/256; 384 is stored, 256 is inferred because it is a Q8 number.

  4. Letter frequency - Wikipedia

    en.wikipedia.org/wiki/Letter_frequency

    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 ...

  5. Five-number summary - Wikipedia

    en.wikipedia.org/wiki/Five-number_summary

    The median of the first group is the lower or first quartile, and is equal to (0 + 1)/2 = 0.5. The median of the second group is the upper or third quartile, and is equal to (27 + 61)/2 = 44. The smallest and largest observations are 0 and 63. So the five-number summary would be 0, 0.5, 7.5, 44, 63.

  6. Equivalence relation - Wikipedia

    en.wikipedia.org/wiki/Equivalence_relation

    For example, 75 but not 57. The relation "has a common factor greater than 1 with" between natural numbers greater than 1, is reflexive and symmetric, but not transitive. For example, the natural numbers 2 and 6 have a common factor greater than 1, and 6 and 3 have a common factor greater than 1, but 2 and 3 do not have a common ...

  7. Quartile - Wikipedia

    en.wikipedia.org/wiki/Quartile

    If you do not choose the median as the new data point, then continue the Method 1 or 2 where you have started. If there are (4 n +1) data points, then the lower quartile is 25% of the n th data value plus 75% of the ( n +1)th data value; the upper quartile is 75% of the (3 n +1)th data point plus 25% of the (3 n +2)th data point.

  8. English grammar - Wikipedia

    en.wikipedia.org/wiki/English_grammar

    2.5.1 Comparison. 2.5 ... Examples of common English prepositions (including ... etc., can be negated by placing the word not before them: not the right answer, ...

  9. Symbol (formal) - Wikipedia

    en.wikipedia.org/wiki/Symbol_(formal)

    The set of formal symbols in a formal language is referred to as an alphabet (hence each symbol may be referred to as a "letter") [1] [page needed] A formal symbol as used in first-order logic may be a variable (member from a universe of discourse), a constant, a function (mapping to another member of universe) or a predicate (mapping to T/F).