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MathematicsMath reference works and essays. Full index at Xah Math. The following are popular topics. Visual Dictionary of Special Plane CurvesA dictionary of plane curves, with history, definition, formulas, and properties. Heavily enhanced with illustrations, video animations, GeoGebra interactive applet, and Mathematica notebooks. (70+ pages) Surface Gallery60+ surfaces in mostly differential geometry and 30+ minimal surfaces. Moebius strip, klein bottle, cross-cap, pseudosphere, hyperboloid, minimal surfaces… (70+ pages) Wallpaper GroupsA exposition on wallpaper groups, with illustrations of the 17 wallpaper groups and a wallpaper gallery. Technically, the derivation of all discontinuous groups of rotation and translation in the plane. (7+ pages, 100+ illustrations) Math Graphics GalleryA collection of mathematical images. We all know mathematics is beautiful, but did you know that math can appear beautiful too? Includes two critical essays: Algorithmic Mathematical Art that surveys and defines the subject, and Geometry: Requirements for a Visualization System for 2020. Great Math ProgramsA annotated listing of 100+ excellent recreational math programs. You'll find polyhedra ＆ Rubic cubes, curves ＆ surfaces, fractals ＆ L-systems, tilings ＆ symmetry, game of hex ＆ game of life, go ＆ five-in-a-row, peg solitare ＆ polyominos, … |
Computing ＆ its PeopleTutorials, Critiques, Commentaries on aspects of the computing industry, technical ＆ social. Siphon my knowledge into your brain; assimilate my sensibilities to your spine. Over 1k articles. Index at Computing ＆ its People. JavaScriptHTML(40)CSS(40)EmacsEmacs LispLinux(160)Perl ＆ Python(70)PHP(30)Java(40)OCaml(4)POV-Ray ＆ 3D Geometry Programing(30)Unicode Gallery ＆ Tutorial ∑ ∞ π © ™ § ☺ ♀ ♂ ♥(90)Keyboards, Layouts, Hotkeys, Macros, RSI ⌨(140)on Programing Languages(140) |