[849] Complex Conjugate

Title Text:Fun fact: if you say this every time a professor does something to a complex-number equation that drops the imaginary part, they’ll eventually move the class to another room and tell everyone else except you.

Origin:https://xkcd.com/849/

https://www.explainxkcd.com/wiki/index.php/849:_Complex_Conjugate

https://app-xkcd-cn.appspot.com/

这部漫画是对“Shit just got real”这句常用短语的一个笑话,意思是某些东西突然增加了难度,所以它现在是一个真正的挑战。 Cueball站在董事会面前,提供了一个教训,并且即将通过其复杂的共轭来增加波函数。在数学中,复数具有实部(a)和虚部(b *虚部)。该数字可以写成+ bi。数字(a + bi)的复共轭是“i”。当一个乘以复数及其共轭时,结果是(a + bi)(a’i),其为a2“πi”2 = a2-揵2i2。假想单元i被定义为“平方根”,因此i2 =“1”。

该过程产生(a2 + b2)的结果,其不具有虚部,使其成为实数,这是对前述短语的游戏。因此,Cueball规定不够熟练的人应该离开。

标题文本指出,如果你每次适用时都开玩笑,那就太烦人了,班级会抛弃你并试图在另一个房间里进行。

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