Fortran
0 Some basic properties Fortran code is case insensitive Fortran code must be written in a program, similar to the main() function in C Example 1 Hello World 1 2 3 program hello_world print *,'Hello World' end program hello_world ...
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Volume of n-ball
From dimensional analysis, volume of a n-ball is proportional to $R^n$ $$ V_n=C_n R^n $$Then from $\int_0^R S_n dr=V_n$ $$ \frac{dV_n}{dR}=V_n=n C_n R^{n-1} $$...
Neovim lsp配置
之前一直是vim原教旨主义者，只用官方的vim，但是vim9推出之后看到网上的评价是重新做了一份插件语言，而neovim可以兼容vim还可以用lua配置，其次neovim内置lsp，想起之前配置语言自动补全的失败经历，尝试了下neovim的配置，果然方便太多了。 下面记录配置python lsp的过程。 ...
Trace Theorems
$$ \operatorname{Tr}(A+B) \equiv \operatorname{Tr}(A)+\operatorname{Tr}(B) $$$$ \operatorname{Tr}(A B \ldots Y Z) \equiv \operatorname{Tr}(Z A B \ldots Y) $$$$ \gamma^{\mu} \gamma^{\nu}+\gamma^{\nu} \gamma^{\mu} \equiv 2 g^{\mu \nu} I $$...
French Helper Check-in Calendar
Quantum Field Theory-Ryder
Quantum Feild Theory Ryder Chapter 2 Single-particle relativistic wave equations...
2022 French Learning Post
Date start 2022-01-20 Le Petit Prince Chapter I ...
2022 Reading Post
cover Name Time Progress 沙丘 2022.03.10-2022.03.12 100% 夏天、烟火和我的尸体 2022.05.12 100% 美国众神 2022.06.14-2022.06.16 100% 伽利略的苦恼 2022.07.09-2022.07.12 100% Charlie et la Chocolaterie 2022.07 100% Great Expectations 2022.08.02-2022.09.24 100%
Install Linux Distro on Android
Android is based on linux kernel, so in theory Android system is able to accomplish many tasks in Linux. ...
内网穿透与vnc
内网穿透 最简单的方案为ssh端口转发，但是ssh断掉之后不会自动重连，我们需要autossh，它可以监控本地端口状态自动重连 ...