【愚千慮】| PikoLive - 遊戲、電視、節目線上看

What is Fast Geometry Builder?

I used Geogebra a lot, but it's too heavy and slow for the web. So I built my own geometry builder based on hotkeys, much faster to build and load the interactive geometry for the web. Major features are:
- Interactive, Re-editable Geometry in SVG.
- Extremely light-weight and fast for all browsers.
- Customizable styles with CSS.
- Animatable via your script(via svgjs).
- LaTeX support
- etc...
What's wrong with Twitch Chat?

As a Twitch user for 10 yrs, the chat is very good for basic communication. But, it's very limited to the viewers to express their thought in science, including math and coding. So I decide to start to improve it by building a Chrome extension called LaTeX4TwitchChat.(Firefox version) Here are the features I've implemented so far:
- Preview $\LaTeX$ locally and render/copy them in the chat.
- Code editor for uploading your code being highlighted in the original format in chat.
  - Highlight the uploaded code and you can copy them by clicking the copy button.
- Graphviz support (!graph)
- Plotting function (!plot)
- Math Calculator (!mc)
- Click the chat message to speech for learning different languages.
- Up/Down keys to traverse the history of messages your have sent.
- Auto load the image below the link of URL for the white listed users which is configured in the extension options. Privacy Notice This feature can only be enabled by urself, this extension won't save any user privacy related info including your twitch username. You have to enter your own username in the whitelist to enable it for yourself.
- Wiki search (!wiki)
- Image search (!im)
Install LaTeX4TwitchChat to see the rendered LaTeX within your browser. !help to get the commands list supported.
Just a programmer from Taiwan.

Chinese/English/Japanese

Commands
- !help : list available commands
- !say : Text to speech (auto language detection)
- !im : Search and show the image of the input text.
- !wiki : Show the term of Wiki search.
- !se: list sound effects
  - !se login : custom login sound effect.
- !yt : song request ($link/$videoId/cut/current)
- !playlist : My playlist
- !la : LaTeX to unicode (ex: y = x^{2})
- !py : run python (one liner)
Translation
- !en text : translate to English
- !tw text : translate to Chinese
- !jp text : translate to Japanese
- !kr text : translate to Korean
- !de text : translate to German etc.... (now, u know the rules)
Note and Dictionary
- !note : take the note of new words. separated by "," Usage: !note hello, 你好, merhaba
- !test : Get 3 random words from the note for your review, it'll be fast to know how much you still remember.
- !def : define the word and it's meaning. it'll be stored in your own dictionary. Usage: !def foo : meaning
- !undef : undefine the word from your dictionary. Usage: !undef foo
- ? : Lookup the meaning of the word stored in your dictionary. Usage: ? foo
LaTeX
- Inline Mode : $\LaTeX$
- Display Mode : $$\LaTeX$$
- !tex : debug ur TeX input
- !cheat : symbols cheat sheet.
Code
- !code function hi() { console.log("hello world")}
- !html <htm><body>Hello World>/body></html>
- !css body { background-color: #666666; }
Math Calculator
- !mc m=[1,1; 1,0]
- !mc m^2 * [1, 1]
- !mc inv([1,2;3,4])
- !mc det(m)
- !mc clear
Plot and Graph
- !plot x + cos(x) - sin(x)
- !digraph 1->2,3->6
- !digraph -i 1->2,3->6
- !graph 1--2--3--4--5--1
- !graph -i 1--2--3--4--5--1
- !dot digraph { a-> b }
Matrix
- !matrix [a,b,c; d,e,f]
- !gauss [1,2,3; 4,5,6]
SageMath
- !sage Prosets.DivisorLattice(30)
- 2020 Mackbook Air (M1)
- Huion 22+ Screen Tablet
- Network : ADSL 684Kbps (Up) / 7Mbps (Down)
Notes
- LaTeX 語法筆記
- 畫畫筆記

What is Fast Geometry Builder?

What's wrong with Twitch Chat?

Commands

Translation

Note and Dictionary

LaTeX

Code

Math Calculator

Plot and Graph

Matrix

SageMath

Notes