complex numbers

基本解释

There is a brief discussion of two dimensional mechanics in terms of complex numbers.
这里有关于用复数来讲二维力学的简短讨论。
Keeping in mind that complex numbers are incomparable even to each other, while Unicode objects only have problems comparing to some strings, we can use
请记住，即便是复数与复数之间也不能进行比较，而 Unicode 对象只在与某些字符串比较时会出问题。
Mathematicians are familiar with this; common problems in algebra are more tractable when considered over the complex numbers than over the reals, even though complex arithmetic is more difficult.
数学家对此很熟悉；如果将代数中的常见问题考虑成复数而不是实数时，那么这些问题就更容易处理，尽管复数算法较难。

I think that book will give you all the basic principles you need in calculus of one variable, more variables, elementary complex numbers, maybe solving some problems with vectors and so on, which you're going to get into.
我想那本书会给你所需的所有基本知识,包括一元和多元微积分,简单的复数运算,可以解决一些与矢量有关的问题,而这正是你们将要学的
耶鲁公开课 - 基础物理课程节选

Complex numbers, which have a real and an imaginary part added together, are the points on this plane that do not lie on either axis.
ECONOMIST: Benoît Mandelbrot
Extending fractals into the plane of complex numbers followed in 1979.
ECONOMIST: Benoît Mandelbrot
The invention of complex numbers was a watershed in mathematics.
ECONOMIST: Benoît Mandelbrot