There actually is something called the Riemann sphere that involves dividing by zero by a different method, but that's a story for another day.
事实上,有个叫黎曼球面的东西,它涉及到通过不同的方法来除以 0,但今天我们且不谈这个。
单词 | Riemann sphere |
释义 |
Riemann sphere
原声例句
双语版 TED-Ed 演讲精选 There actually is something called the Riemann sphere that involves dividing by zero by a different method, but that's a story for another day. 事实上,有个叫黎曼球面的东西,它涉及到通过不同的方法来除以 0,但今天我们且不谈这个。 TED-Ed(视频版) There actually is something called the Riemann sphere that involves dividing by zero by a different method, but that’s a story for another day. 实际上有一种叫做黎曼球体的东西,它涉及用不同的方法除以零,但这是另一天的故事。
中文百科
黎曼球面![]() ![]() ![]() ![]() 数学上,黎曼球面是一种将复数平面加上一个无穷远点的扩张,使得下面这类公式至少在某种意义下有意义 它由19世纪数学家黎曼而得名。也称为 从纯代数的角度,复数加上一个无穷远点构成一个数系称为扩充复数。无穷远点的算数有时和一般的代数规则不符,因此扩充复数不构成一个代数域。但是,黎曼球面在几何和解析角度都行为良好,甚至在无穷远点也不例外;它是一个一维复流形,也称黎曼曲面。 复分析中,黎曼球面对于亚纯函数这个优雅的理论很有帮助。黎曼球面在射影几何和代数几何中作为复流形、射影空间和代数簇的基本例子到处出现。它在涉及分析和几何的其他学科也很有用,譬如量子力学和物理学其他分支。
英语百科
Riemann sphere 黎曼球面![]() ![]() ![]() ![]() In mathematics, the Riemann sphere, named after the 19th century mathematician Bernhard Riemann, is a model of the extended complex plane, the complex plane plus a point at infinity. This extended plane represents the extended complex numbers, that is, the complex numbers plus a value ∞ for infinity. With the Riemann model, the point "∞" is near to very large numbers, just as the point "0" is near to very small numbers. |
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