|
Angzarr
The angzarr () is an obscure typographical symbol representing azimuth, dating back to at least the mid 20th century, which became notorious during the first half of the 2020s for its obscurity and lack of a widely recognised meaning (compare ghost characters). The name is from an abbreviation of its ISO 9573-13 name, "Angle with Down Zig-zag Arrow", also reflected in its Unicode name, "Right Angle with Downwards Zigzag Arrow". Its HTML entity reference, originally defined in ISO 9573-13 for use in SGML, is . It has been included in Unicode since version 3.2. History The symbol can be found in H. Berthold AG symbol catalogs published some time in the 1950s and 1960s, where it is described as a mathematical symbol for "'". It is also found in a 1963 Monotype typeset catalog of arrow characters; it does not appear in an earlier 1954 edition of the same catalog. Monotype listed the symbol as matrix serial number S9576. A later 1972 Monotype catalog, for mathematical charac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azimuth
An azimuth (; from ) is the horizontal angle from a cardinal direction, most commonly north, in a local or observer-centric spherical coordinate system. Mathematically, the relative position vector from an observer ( origin) to a point of interest is projected perpendicularly onto a reference plane (the horizontal plane); the angle between the projected vector and a reference vector on the reference plane is called the azimuth. When used as a celestial coordinate, the azimuth is the horizontal direction of a star or other astronomical object in the sky. The star is the point of interest, the reference plane is the local area (e.g. a circular area with a 5 km radius at sea level) around an observer on Earth's surface, and the reference vector points to true north. The azimuth is the angle between the north vector and the star's vector on the horizontal plane. Azimuth is usually measured in degrees (°), in the positive range 0° to 360° or in the signed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ghost Characters
are erroneous kanji included in the Japanese Industrial Standard, JIS X 0208. 12 of the 6,355 kanji characters are ghost characters. Overview In 1978, the Ministry of Economy, Trade and Industry, Ministry of Trade and Industry established the standard JIS C 6226 (later JIS X 0208). This standard defined 6349 characters as JIS Level 1 and 2 Kanji characters. This set of Kanji characters is called "JIS Basic Kanji". At this time, the following four lists of Kanji characters were used as sources. # Kanji Table for Standard Codes (Draft): Information Processing Society of Japan, IPSJ Kanji Code Committee (1971) # National Land Administrative Districts Directory: Geographical Society of Japan (1972) # Nippon Seimei's family name table: Nippon Life (1973, no longer extant) # Basic Kanji for Administrative Information Processing: Administrative Management Agency (1975) At the time of the establishment of the standard, the authority for each character was not clearly stated, and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
