Out Of Context
感到我只是一个非常有限的自我 还是做不到想做的东西，遥不可及， 不知道这个生活是什么。
it made me think what has been wrong and why i have to suffer so much. i came to no conclusions at all. There are people suffer more while achieving more.
1.不必只接受一个观点，一个方法。2. 学习简单易懂的解释，不丢人。3. 不用着急立刻理解。学习中不理解和不完全理解都不意味着徒劳。
对cinemon桌面感到厌倦。最后开始用sway。它的配置确实简单。让人惊讶的是它的配置包含了对输入设备的管理，比如触摸板的tapping就能在配置文件里写。
关于显示管理器的观察：profile内容如果用显示管理器启动sway以后不会生效。但是用显示管理器启动其他DE会生效。通过tty启动sway也会生效。
睡地板9点起床，感觉很好 2025-12-03 11:06:35
昨天吃完饭后很困。9点就睡了。
2025-12-05 04:29:49
I found something new, and more confusions. Sometimes I just need to refrain a little from the anxiety to control the computer, or anything else.
我是多么懒惰，盲目相信应该歇着、做什么也没用等话。
I feel that there are many uncertainties in life, and I am not doing my best. suggestion from Gemini AI: write "I have not exerted my best effort" instead)
Being aware of the procrastination and inaction, what did i do? I used the excuse that, without peripheral procrastination, the personal issues would immediately overshadow, causing the opposition of peace and tranquility.
办公室连续剧让我重复了anger can be controlled 的想法，还有塞涅卡也是。 于是我想到恐惧也是可以控制的
现实不容置辩
不要害怕再害怕也没有用
if i use wm and de the same time, there might be conflicts. example: the wm touch pad settings are managed by a single file (xdg file, or they override something using their own files e.g. Sway) In the former case, the DE's overriding settings might conflict.
Sometimes instantly work and then no longer work again
Sometimes, a crucial basic program that does not work suddenly, with reason unknown, starts to work. You do not know why this happens. It is myterious to encouter this kind of situation.
The .profile file is important for fcitx to be loaded. But it seems that whenever sway starts, .profile does not seem to have made effects. So, the problem is to make Sway effectively set up environment variables.
Wayland And Xwayland
因为我在用xwayland 而不是native wayland. xfce-terminal 和 firefox 都是如此。
Sing-box
I am trying to configure the TUN mode. The log says 'timeout'. I thought it was the problem with dns. Because the ping works ok...
The problem seems not to be with DNS, because with dns config it still says 'timeout'. it is even more weird that it says the certification is from a loan website. I have no idea.
I learned that Sing-box takes care of creating the tun interface so i do not need to do it.
The auto-route is the option to create the interface.
The proxy server needs to be solved using another server, which I am yet to know how to configure. When it dials the proxy server, it uses the proxy server (vless-proxy) to resolve. This seems to suggest where the wrong config is. But I still do not know how to make this work-- what the "rules" and "severs" are.
Integral
The steijel integral is slightly more general than Riemann. First two questions in Rudin are easy. I do not see much properties particular to Steiljel revealed by these two problems though.
Also, there is a question that asks about generalizing integral by part to improper integrals... I just looked at them but didn't do much thinking.
how to find the square root of a + b \sqrt {2} (or know it is not a square in \mathbb Z[\sqrt 2] ?)
- Simple. Just solve integer equations. Note that the natural number condition narrows down the possibilities of solutions. But it is a simple equations anyway.
I thought the computation of writing p as a sum of squares can be done directly. But after some thought I realized that it relies on writing smaller primes as sum of squares.
It is not an efficient algorithm but it is indeed an (recursive) algorithm.