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  1. en.wikipedia.org › wiki › UTF-8UTF-8 - Wikipedia

    5 天前 · UTF-8 is a variable-length character encoding standard used for electronic communication. Defined by the Unicode Standard, the name is derived from Unicode Transformation Format – 8-bit. [1] UTF-8 is capable of encoding all 1,112,064 [a] valid Unicode code points using one to four one- byte (8-bit) code units.

  2. en.wikipedia.org › wiki › Unit_731Unit 731 - Wikipedia

    1 天前 · It was based in the Pingfang district of Harbin, the largest city in the Japanese puppet state of Manchukuo (now Northeast China) and had active branch offices throughout China and Southeast Asia . Established in 1936, Unit 731 was responsible for some of the most notorious war crimes committed by the Japanese armed forces.

  3. 2 天前 · Probability theory. In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable. The general form of its probability density function is. The parameter is the mean or expectation of the distribution (and also its median and mode ), while ...

  4. 4 天前 · 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. 2 天前 · Everything Everywhere All at Once is a 2022 American absurdist comedy-drama film written and directed by Daniel Kwan and Daniel Scheinert, [a] who produced it with Anthony and Joe Russo and Jonathan Wang.

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

    5 天前 · The logarithm base 10 is called the decimal or common logarithm and is commonly used in science and engineering. The natural logarithm has the number e ≈ 2.718 as its base; its use is widespread in mathematics and physics, because of its very simple derivative. The binary logarithm uses base 2 and is frequently used in computer science .

  7. 4 天前 · What links here Related changes Upload file Special pages Permanent link Page information Cite this page Get shortened URL Download QR code In mathematics, sine and cosine are trigonometric functions of an angle.The sine and cosine of an acute angle are defined in the context of a right triangle: for the specified angle, its sine is the ratio of the length of the side that is opposite that ...