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  2. 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 ...

  3. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    To calculate a percentage of a percentage, convert both percentages to fractions of 100, or to decimals, and multiply them. For example, 50% of 40% is: ⁠ 50 / 100 ⁠ × ⁠ 40 / 100 ⁠ = 0.50 × 0.40 = 0.20 = ⁠ 20 / 100 ⁠ = 20%. It is not correct to divide by 100 and use the percent sign at the same time; it would literally imply ...

  4. Unicode subscripts and superscripts - Wikipedia

    en.wikipedia.org/wiki/Unicode_subscripts_and...

    The most common superscript digits (1, 2, and 3) were included in ISO-8859-1 and were therefore carried over into those code points in the Latin-1 range of Unicode. The remainder were placed along with basic arithmetical symbols, and later some Latin subscripts, in a dedicated block at U+2070 to U+209F.

  5. List of XML and HTML character entity references - Wikipedia

    en.wikipedia.org/wiki/List_of_XML_and_HTML...

    HTML 5.0 ISOlat2 Latin small letter a with macron Ă Ă: U+0102 HTML 5.0 ISOlat2 Latin capital letter A with breve ă ă: U+0103 HTML 5.0 ISOlat2 Latin small letter a with breve Ą Ą: U+0104 HTML 5.0 ISOlat2 Latin capital letter A with ogonek ą ą: U+0105 HTML 5.0 ISOlat2 Latin small letter a with ogonek Ć Ć: U+ ...

  6. Caste - Wikipedia

    en.wikipedia.org/wiki/Caste

    A large proportion of the experimental work was done in species that showed strong variation in size. [111] As the size of an adult was fixed for life, workers of a specific size range came to be called a "caste", calling up the traditional caste system in India in which a human's standing in society was decided at birth. [111]

  7. Crore - Wikipedia

    en.wikipedia.org/wiki/Crore

    Crore (/ k r ɔːr /; abbreviated cr) denotes the quantity ten million (10 7) and is equal to 100 lakh in the Indian numbering system.In many international contexts, the decimal quantity is formatted as 10,000,000, but when used in the context of the Indian numbering system, the quantity is usually formatted 1,00,00,000.

  8. Grading in education - Wikipedia

    en.wikipedia.org/wiki/Grading_in_education

    Grading in education is the application of standardized measurements to evaluate different levels of student achievement in a course. Grades can be expressed as letters (usually A to F), as a range (for example, 1 to 6), percentages, or as numbers out of a possible total (often out of 100).

  9. Span (unit) - Wikipedia

    en.wikipedia.org/wiki/Span_(unit)

    Ancient Greek texts show that the span was used as a fixed measure in ancient Greece since at least archaic period.The word spithame (Greek: "σπιθαμή"), "span", [4] is attested in the work of Herodotus [5] in the 5th century BC; however, the span was used in Greece long before that, since the word trispithamos (Greek: "τρισπίθαμος"), "three spans long", [6] occurs as early as ...