Showing posts from January 9, 2011

Do you know what is CGI?

Worked with Mathematica for 5 hours yesterday. Fantastic! This old hand can still do something! lol. My plane curve packages soon to be out n am gonna be rich....gosh what godly hours i've spend on Mathematica in 1990s. Surprised to find that i even Unproctected builtin symbols to fix things. (get rid of asymptotes in ParametricPlot) (Draft notes as i go: Mathematica Version 3 to Version 7 Conversion Notes) ... i recall, i stopped doing Mathematica in 1998 because it's a career dead-end as a programing lang, and dived into the utterly idiotic Perl & unix & mysql world. (See: The Unix PestilenceXah Lee's Computing Experience (Impression Of Lisp from Mathematica).) Well, dead-end just as Emacs Lisp i'm spending my nights with in the past 4 years. LOL. And on that note, same thing can be said with haskell, OCaml.Though, fringe langs are picking up these days. Remember Python, ruby, in year 2000? Who'd imagined they'd become mainstream. But it took …

Xah Emacs Modes; Asking Your Support

Perm url with updates: Emacs Modes; Asking Your SupportXah Lee, 2011-01-13This page lists emacs codes i've written that's packaged and for public use.Unicode RelatedEmacs Unicode Browser (xub-mode)Emacs Math Symbols Input Mode (xmsi-mode)Language ModesEmacs BBCode mode (xbbcode-mode)Emacs AutoHotkey Mode (xahk-mode)Emacs LSL Mode (xlsl-mode) for Linden Scripting LanguageOtherErgoEmacs KeybindingYasnippet Templates for Emacs Lisp (a emacs distro, together with David Capello.)elisp find/replace util xfrp_find_replace_pairs.elAsking For SupportWorking on my site has become a full-time job since about 2005. If you find my tutorial and packages useful, may i ask for your support?I sell my elisp packages. They are all Open Source so you are free to customize. Here's some ways you can help me out.Buy one of my packages. On each page, there's a paypal button.Buy your books, computers, keyboard, mouse, gadgets, a…

Chinese Character Etymology


cellular biology and stuff

Was chatting to a friend, who's studying Bioinformatics. I've taken 2 courses of molecular biology in early 1990s. That's ages ago. All i remember is that there are Cells, and inside cells you have DNA and mitochondria and stuff. I asked what book he's using just out of curiosity. Here they are:Janeway's Immunobiology By Kenneth M Murphy et al. amazonMolecular Biology of the Cell By Bruce Alberts et al. amazonO gosh, god please give me knowledge.O, recently amazon has this cheap text book program. Here's the ad: I guess it's back to school time. Pleas support my site by buying from the link.

browser and url: space in file names

It looks like today's browsers will automatically convert spaces in url to the required precent encoding %20 in your html links or image links. For example, suppose you have this image at 〔 house.jpg〕. Notice the space there. In your html code, you can just do this: <imgsrc=" house.jpg"alt="my house"> It works in all current version of browsers. It appears that the browsers will encode it for you before sending the HTTP request. e.g. browsers will send GET /i/my%20house.jpg HTTP/1.1. Of course, by spec, you should encode spaces by %20 in your URI. The common practice today is still not to use any spaces in file names on server. Because this encoding creates a lot complexities. Though, i'm not sure how long this practice will last, because space is just so much easier to type, easier to read, and frequently needed. I wonder, if in a few years, maybe common web practice will use spaces in file names and leav…

nice new javascript book

A very nice free javascript programing book for beginning programers. At Eloquent JavaScript: A Modern Introduction to Programming By Marijn Haverbeke. At you have programing experience, you might also checkout my Xah's Javascript Tutorial for fast intro.

internet personality (cute chicks vids)

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emacs: capslock for M-x

About 3 months ago, i started to use the Caps Lock key for emacs “M-x”. That's fantastic. If you are on Windows, here's a util that can make it happen.Get it here: also: System-wide ErgoEmacs Keybinding for Windows, Mac, Bash.