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  2. Chinese character radicals - Wikipedia

    en.wikipedia.org/wiki/Chinese_character_radicals

    Using this "multi-component method" [19] a relatively new development enabled by computing technology, the user can select all of a character's components from a table and the computer will present a list of matching characters. This eliminates the guesswork of choosing the correct radical and calculating the correct stroke count, and cuts down ...

  3. Karnaugh map - Wikipedia

    en.wikipedia.org/wiki/Karnaugh_map

    The Karnaugh map ( KM or K-map) is a method of simplifying Boolean algebra expressions. Maurice Karnaugh introduced it in 1953 [ 1][ 2] as a refinement of Edward W. Veitch 's 1952 Veitch chart, [ 3][ 4] which itself was a rediscovery of Allan Marquand 's 1881 logical diagram[ 5][ 6] aka Marquand diagram[ 4] but now with a focus set on its ...

  4. Bopomofo - Wikipedia

    en.wikipedia.org/wiki/Bopomofo

    Bopomofo is the predominant phonetic system in teaching, reading and writing in elementary school in Taiwan. In elementary school, particularly in the lower years, Chinese characters in textbooks are often annotated with Bopomofo as ruby characters as an aid to learning. Additionally, one children's newspaper in Taiwan, the Mandarin Daily News ...

  5. Numbered musical notation - Wikipedia

    en.wikipedia.org/wiki/Numbered_musical_notation

    The numbered musical notation (simplified Chinese: 简谱; traditional Chinese: 簡譜; pinyin: jiǎnpǔ; lit. 'simplified notation', not to be confused with the integer notation) is a cipher notation system used in Mainland China, Taiwan, Hong Kong, and to some extent in Japan, Indonesia (in a slightly different format called "not angka"), Malaysia, Australia, Ireland, the United Kingdom ...

  6. Simplified Chinese characters - Wikipedia

    en.wikipedia.org/wiki/Simplified_Chinese_characters

    The 14 simplified components in Chart 2 are never used alone as individual characters. They only serve as components. Example of derived simplification based on the component 𦥯, simplified to 𰃮 ( ), include: 學 → 学; 覺 → 觉; 黌 → 黉. Chart 1 collects 352 simplified characters that generally cannot be used as components.

  7. Eratosthenes - Wikipedia

    en.wikipedia.org/wiki/Eratosthenes

    Eratosthenes was the founder of scientific chronology; [5] he used Egyptian and Persian records to estimate the dates of the main events of the Trojan War, dating the sack of Troy to 1183 BC. In number theory, he introduced the sieve of Eratosthenes, an efficient method of identifying prime numbers and composite numbers.

  8. Counting rods - Wikipedia

    en.wikipedia.org/wiki/Counting_rods

    The method for using counting rods for mathematical calculation was called rod calculation or rod calculus (筹算). Rod calculus can be used for a wide range of calculations, including finding the value of π , finding square roots , cube roots , or higher order roots , and solving a system of linear equations .

  9. Nashville Number System - Wikipedia

    en.wikipedia.org/wiki/Nashville_Number_System

    Nashville Number System. The Nashville Number System is a method of transcribing music by denoting the scale degree on which a chord is built. It was developed by Neal Matthews Jr in the late 1950s as a simplified system for the Jordanaires to use in the studio and further developed by Charlie McCoy. [ 1] It resembles the Roman numeral [ 2] and ...