我,来自苏州,是一个热爱二次元的码农。
新博客,新起点
我只不过是一只普普通通的初中牲罢了
那么,让我来介绍一下这个博(垃)客(圾)
硬件配置:
托管于Github(国内可能要科学上网)
--------只要Github一天不倒,我的博客就一天不倒!
软件配置:
博客平台 | 基于 | 域名 |
---|---|---|
VuePress | NodeJs+Pnpm+VSCode+CMD | 阿里云,两年只要70元 |
一个热爱二次元的码农
我,来自苏州,是一个热爱二次元的码农。
我只不过是一只普普通通的初中牲罢了
硬件配置:
托管于Github(国内可能要科学上网)
--------只要Github一天不倒,我的博客就一天不倒!
软件配置:
博客平台 | 基于 | 域名 |
---|---|---|
VuePress | NodeJs+Pnpm+VSCode+CMD | 阿里云,两年只要70元 |
最近发现了一些有趣的物理漫画
The Stanford Linear Accelerator Center was known as SLAC, until the big earthquake, when it became known as SPLAC. SPLAC? Stanford Piecewise Linear Accelerator.
The answer to the problem was 'log(1+x)'. A student copied the answer from the good student next to him, but didn't want to make it obvious that he was cheating, so he changed the answer slightly, to 'timber(1+x)'
What is the difference between a physicist, an engineer, and a mathematician?
If an engineer walks into a room and sees a fire in the middle and a bucket of water in the corner, he takes the bucket of water and pours it on the fire and puts it out.
If a physicist walks into a room and sees a fire in the middle and a bucket of water in the corner, he takes the bucket of water and pours it eloquently around the fire and lets the fire put itself out.
If a mathematician walks into a room and sees a fire in the middle and a bucket of water in the corner, he convinces himself there is a solution and leaves.
An experimental physicist performs an experiment involving two cats, and an inclined tin roof.
The two cats are very nearly identical; same sex, age, weight, breed, eye and hair color.
The physicist places both cats on the roof at the same height and lets them both go at the same time. One of the cats fall off the roof first so obviously there is some difference between the two cats.
What is the difference?
One cat has a greater mew
在准备部署到服务器时,需要提前准备好:
在小学时期,老师强调0不能做除数,因为无法想象6个苹果分给0个人会发生什么。
再大一点到了初高中时期,我们使用使用反证法,可以证明任何数除以0不会得到1,因为这会导致所有数都等于1,与现实相悖。
证明: 假设10÷0=b 那么b x 0=10 bx(0+0)=10
bx0+bx0=10
10+10=10 所以2=1 以此类推,我们还可以证明出3=1,4=1......
到了大学,我们可以从数学上的极限概念讨论,当分子1与分母逐渐趋近0时,分数1/0的结果会趋近正无穷大。但如果分母变为负的极小数,结果会趋近负无穷大。由于正无穷大和负无穷大之间存在极大差距,因此1/0不能同时等于正无穷大和负无穷大。
在高等数学中,除以零可能不再是无意义的操作,而是与无穷概念的拓展相关的有趣规则。随着数学知识的深入,特别是学习负数和复数后,我们可能会理解1除以0的真正含义,虚数就是在实数轴外引入虚数轴,形成复平面而形成的。
这时候我们引入一个叫“黎曼球”的概念,它是通过将平面上的点卷曲到球面上形成的。球面上的点与平面上的点一一对应,球面上的点离原点越远的点会集中在球的北极点附近。当光线的角度变小时,平面上的点离原点越远的对应点也会集中在球的北极点附近。黎曼球的北极点对应于平面上无穷远处的点,即“1÷0”。
所以在黎曼球的规则下,除以零的结果不一定是正无穷或负无穷,可能是一种新的概念:无穷。这种无穷既非负数也非正数,同时也非实数和虚数。它的长度无限,方向任意,但不再是虚无的概念。