Math coeducation : Buddhist glossary : discipline of physics : China > Sichuan > Zigong > hazard
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《未知数》
Poet: Ge Quzuozhe

No. 2
  ◎ unknown wèizhīshù
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No. 3
  Mathematical equation to be proved in the number or other symbol
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No. 4
  Metaphors do not know what
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No. 5
  Can book publishing, is unknown
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Mathematical terms
  Mathematical terms. Algebraic or numerical equation that need to go through to determine the number of operations. Yu also means not to understand things. Wei Wei, "East" part IV of Chapter XVII: "When the distant goal is still unknown, we own the ship has been crushed in a rock." Such as: Can this success or looks.
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No. 7
  Learn to forget the anger
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词典解释
  wèi zhī shù
  未知数,数学名词。指代数式或方程中数值需要经过运算才能确定或得到与别的未知数关系的数。亦喻指尚未了解的事物。
数学
  未知数(unknown number)是在解方程中有待确定的值。
  中国
  我国古代并不用符号来表示未知数,而是用筹算来解方程。至宋、元时代的「天元术」,用「立天元」表示未知数,并在相应的系数旁写一个元字以为记号。至元朝朱世杰(约13 世纪)用天、地、人、物表示四个未知数,建 立了四元高次方程组理论。现在数学中的消元问题中元的叫法也由此而来
  西方
  古希腊的丢番图(约246-330)用字母来表示未知数,但以后进展很慢。过去不同未知数会用同一个符号来表示,容易混淆,所以 1559年法国数学家彪特(1485至1492-1560至 1572)开始用A、B、C表示不同的未知数
  1591年韦达用A、E、I等元音字母表示未知数
  1637年笛卡儿(1596-1650)在《几何学》中始用x、y、z表示正数的未知数。直至1657 年约翰哈德才用字母表示正数和负数的未知数
音乐歌曲
  Let the glorious end of love
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English Expression
  1. :  unknown quantity,  alpha
  2. n.:  hazard,  unknown,  uncertain
  3. adj.:  Y
French Expression
  1. n.  inconnue
Thesaurus
unknown quantity, quantity that is not yet determined
Containing Phrases
hazard __delete__cy
Hazard most gibbous