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  1. en.wikipedia.org › wiki › TaiwanTaiwan - Wikipedia

    Taiwan, [II][j] officially the Republic of China (ROC), [I][k] is a country [27] in East Asia. [n] The main island of Taiwan, also known as Formosa, lies between the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast, and the Philippines to the south.

  2. en.wikipedia.org › wiki › F-scoreF-score - Wikipedia

    Precision and recall. In statistical analysis of binary classification and information retrieval systems, the F-score or F-measure is a measure of predictive performance. It is calculated from the precision and recall of the test, where the precision is the number of true positive results divided by the number of all samples ...

  3. en.wikipedia.org › wiki › ASCIIASCII - Wikipedia

    ASCII codes represent text in computers, telecommunications equipment, and other devices. ASCII has just 128 code points, of which only 95 are printable characters, which severely limit its scope. The set of available punctuation had significant impact on the syntax of computer languages and text markup.

  4. ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard [1] published by the International Organization for Standardization (ISO), to represent countries, dependent territories, and special areas of geographical interest.

  5. en.wikipedia.org › wiki › AsteriskAsterisk - Wikipedia

    In computer science, the asterisk is commonly used as a wildcard character, or to denote pointers, repetition, or multiplication. History. The asteriskos used in an early Greek papyrus. Early asterisks seen in the margin of Greek papyrus. [3] The asterisk was already in use as a symbol in ice age cave paintings. [4] .

  6. en.wikipedia.org › wiki › WikipediaWikipedia - Wikipedia

    Wikipedia[c] is a free content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the wiki software MediaWiki.

  7. In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. Geometrically, these are identities involving certain functions of one or more angles.