Keep Thriving https://joak.org/ 2026-04-15T00:58:56+00:00 https://joak.org/ https://joak.org/_media/favicon.ico text/html 2026-03-27T09:06:07+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:others:tools?rev=1774602367&do=diff 有用工具集 * awesome 汇总：awesome list 在线工具 * Bookmark.style: online site, 制作链接分享图片 * Assembler Simulator: online site, github repo, 8位x86 CPU 模拟器 * TheWall online site, 地球云图 * ZoomEarth online site, 温度地图等交互式天气地图 * canva: online site, 可画，平面设计，模板丰富 ———— 开源替代品 text/html 2026-01-16T08:42:15+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:it:arm?rev=1768552935&do=diff text/html 2026-01-16T01:38:01+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:it:linux:systemd?rev=1768527481&do=diff Systemd * Systemd 的特点和使用 * <http://www.jinbuguo.com/systemd/systemd.service.html> * <http://www.ruanyifeng.com/blog/2016/03/systemd-tutorial-commands.html> * <https://www.freedesktop.org/software/systemd/man/systemd.exec.html> * Systemd 示例教程，可在线尝试 Tips * 查看服务依赖： systemctl list-dependencies foo.service * 查看服务开机启动顺序：systemd-analyze plot > ~/boot.svg * 查看开机服务启动总时间：systemd-analyze * 查看开机服务启动耗时排序:… text/html 2026-01-05T09:19:20+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:it:git?rev=1767604760&do=diff GIT 一、为什么要使用代码版本控制系统 * 历史版本的说明、存储与备份 * 便于团队协同合作 * 便于查看代码差异、变动历史 二、GIT 与 SVN 的区别 * GIT 为分布式的，GIT 工程每个副本都是一个备份；而 SVN 是非分布式的，依赖一个中心服务器； text/html 2025-12-30T09:17:43+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:math:tessellation?rev=1767086263&do=diff Tessellation 平面密铺 * 知乎上非常好的一篇文,by 陆zz 五边 不产生周期性图形的密铺 * 帽子、乌龟和幽灵：<https://www.nhatcher.com/post/on-hats-and-sats/> * 以下来自：<https://github.com/ruanyf/weekly/blob/master/docs/issue-379.md> * 2022年，一个业余数学家 David Smith 发现了一个有点像帽子的奇特形状： 这个形状的奇特之处在于，它可以无限不重复地铺满整个空间，且不形成周期性的重复图案。… text/html 2025-12-30T09:17:13+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Amath%3Apaper.png&ns=public%3Amath&rev=1767086233&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:math:paper.png?w=500&amp;h=500&amp;tok=05fdc8" alt="paper.png" loading="lazy" width="500" height="500" /> text/html 2025-12-30T09:10:01+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Amath%3Aturtle.png&ns=public%3Amath&rev=1767085801&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:math:turtle.png?w=500&amp;h=500&amp;tok=536fc2" alt="turtle.png" loading="lazy" width="500" height="500" /> text/html 2025-12-30T09:10:00+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Amath%3Aspectre.png&ns=public%3Amath&rev=1767085800&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:math:spectre.png?w=500&amp;h=500&amp;tok=22771e" alt="spectre.png" loading="lazy" width="500" height="500" /> text/html 2025-12-30T09:09:24+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Amath%3Asimple-tilling.png&ns=public%3Amath&rev=1767085764&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:math:simple-tilling.png?w=500&amp;h=500&amp;tok=862a64" alt="simple-tilling.png" loading="lazy" width="500" height="500" /> text/html 2025-12-30T09:08:31+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Amath%3Ahat-marked.png&ns=public%3Amath&rev=1767085711&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:math:hat-marked.png?w=500&amp;h=500&amp;tok=ccac95" alt="hat-marked.png" loading="lazy" width="500" height="500" /> text/html 2025-12-30T08:47:34+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:cs:programming_languages?rev=1767084454&do=diff Programming languages * Great Works in Programming Languages * 编程语言速度比较：<https://niklas-heer.github.io/speed-comparison/> Others * 图灵完备(Turing complete) Turing completeness * Brainfuck:Brainfuck * <http://fatiherikli.github.io/brainfuck-visualizer/> * Wolfram Language<http://www.wolfram.com/language/fast-introduction-for-programmers/zh/> * Syntax Design 学习笔记 * 《计算机程序的构造与解释》笔记 学习一门新编程语言的一般步骤 * 了解该语言的出生背景与适用环境… text/html 2025-12-30T08:46:11+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:it:llm?rev=1767084371&do=diff LLM(Large Language Model) * 大语言模型 * 大模型的原理：<https://ngrok.com/blog/prompt-caching/> 本地部署 llm * <https://anthonylewis.com/2025/06/01/run-your-own-ai/> Ollama * Ollama 官网 * github repo * 支持的大模型列表：<https://ollama.com/library> * 博客：介绍和使用 环境变量设置 * windows 修改环境变量后，需要把 ollama app 杀掉重启才能生效，右下角图标可以退出，然后cmd命令行就可以自动启动。… text/html 2025-08-12T08:34:51+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:math:start?rev=1754987691&do=diff Mathematics Useful * 美国数学学会认可的教科书 * ProofWiki 定理证明收集wiki 问题 * Funny Formula * 赠券收集问题 * 欧拉公式 Euler's formula * Tessellation 平面密铺 子分类 * 数论 Number Theory * 图论 Graph Theory * 统计学 Statistics * 数学分析 Mathematical Analysis Tools * LaTeX Fun * Conway's Game of Life * <http://mingplusplus.com/game-of-life/> * 本福特定律（Benford's law）：<https://zh.wikipedia.org/wiki/%E6%9C%AC%E7%A6%8F%E7%89%B9%E5%AE%9A%E5%BE%8B> * 描述了真实数字数据集中首位数字的频率分布。一堆从实际生活得出的数据中，以1为首位数字的数的出现概率约为总数的… text/html 2025-08-11T03:07:56+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:it:nodejs?rev=1754881676&do=diff NodeJS/Javascript News: * NodeJS releases note * node-v0-12-0-stable * API-changes-between-v0.10-and-v0.12 Nodejs版本选择与快速安装利器NVM,适用开发环境 * Official site * 从零开始系列文章 * Mozilla JS reference * 阮一峰的js教程 * 深入理解JavaScript系列 * Generator and asynchronous programming * TypeScript * Nodejs v4.0.0 之后的版本需要 gcc 4.7版本以上来进行 addon 编译. GCC 4.7 or newer is required due to V8 using the template alias feature in C++. 截止 2025 年的改进… text/html 2025-07-30T05:50:52+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:it:webrtc?rev=1753854652&do=diff WebRTC * Official site: webrtc.org * chrome webrtc 调试：<chrome://webrtc-internals/> * <https://blog.csdn.net/cgs1999/article/details/110084983> * [WebRTC 学习指南](<https://webrtc.mthli.com/>) 这个很不错，需翻墙。 * webrtc 的 sdp 协商： <https://webrtc.mthli.com/basic/sdp-introduction/> * <https://cloud.tencent.com/developer/news/672565> * WebRTC 中的 SDP -- 很详细 Tips * SDP 中 a=rtcp-mux 属性用于指示实时传输控制协议（RTCP）的多路复用。这意味着 RTP 和 RTCP 数据将在同一个传输通道（如同一个 UDP 端口）上发送，而不是分别使用不同的端口。… text/html 2025-07-18T08:28:09+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:math:funny_formula?rev=1752827289&do=diff Funny Formula * \[ 3^3+4^3+5^3=6^3 \] * 莱布尼茨圆周率公式 \[ \frac{\pi}{4} = 1 - \frac{1}{3} + \frac{1}{5} - \frac{1}{7} + \cdots \] * 巴塞尔问题解 \[ \sum_{n=1}^{\infty} \frac{1}{n^2} = \frac{\pi^2}{6} \] * 高斯积分 \[ \int_{-\infty}^{\infty} e^{-x^2} dx = \sqrt{\pi} \] * 斯特林公式 Stirling Approximation: \[ n! \approx \sqrt{2\pi n}\, \left(\frac{n}{e}\right)^{n} \] text/html 2025-06-23T07:18:15+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:it:game_engines?rev=1750663095&do=diff Game Engines List_of_game_engines <-注意此列表过时信息比较多 Unreal * Official site Cocos2d-x * Official site Unity * Official site 模式 ECS * Entity–component–system * ECS的一个C++实现：EnTT * Experimenting with ECS in UE4 Libs and Tools * SFML: Simple and Fast Multimedia Library，简称SFML, 简单快速多媒体库, C++ text/html 2025-04-23T03:00:32+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Agvcp_3.png&ns=public%3Ait&rev=1745377232&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:it:gvcp_3.png?w=500&amp;h=500&amp;tok=92bf05" alt="gvcp_3.png" loading="lazy" width="500" height="500" /> text/html 2025-04-23T03:00:32+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Agvcp_2.png&ns=public%3Ait&rev=1745377232&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:it:gvcp_2.png?w=500&amp;h=500&amp;tok=d6282e" alt="gvcp_2.png" loading="lazy" width="500" height="500" /> text/html 2025-04-23T03:00:32+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Agvcp_1.png&ns=public%3Ait&rev=1745377232&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:it:gvcp_1.png?w=500&amp;h=500&amp;tok=432e50" alt="gvcp_1.png" loading="lazy" width="500" height="500" /> text/html 2024-04-23T02:29:41+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3A%E6%A0%87%E5%87%86iso-iec14496-15-2017.docx&ns=public%3Ait&rev=1713839381&tab_details=history&media_do=diff&do=media <img src="https://joak.org/lib/images/fileicons/svg/docx.svg" alt="标准iso-iec14496-15-2017.docx" loading="lazy" width="500" height="500" /> text/html 2024-04-23T02:18:58+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Aiso_iec_14496-15_2013_avcff.pdf&ns=public%3Ait&rev=1713838738&tab_details=history&media_do=diff&do=media <img src="https://joak.org/lib/images/fileicons/svg/pdf.svg" alt="iso_iec_14496-15_2013_avcff.pdf" loading="lazy" width="500" height="500" /> text/html 2024-04-23T02:18:22+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Aiso_iec_14496-14-2020.pdf&ns=public%3Ait&rev=1713838702&tab_details=history&media_do=diff&do=media <img src="https://joak.org/lib/images/fileicons/svg/pdf.svg" alt="iso_iec_14496-14-2020.pdf" loading="lazy" width="500" height="500" /> text/html 2024-04-23T02:16:17+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Aiso_iec_14496-12_2015.pdf&ns=public%3Ait&rev=1713838577&tab_details=history&media_do=diff&do=media <img 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