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Math

Index: Xah Math

Popular topics:

hypotrochoidGen2
Visual Dictionary of Special Plane Curves

wavy enneper
Surface Gallery

TransitivityOfRotation
Wallpaper Groups

sq squarly weave-p
Math Graphics Gallery

much more at Xah Math

Programing

Index: Hacker Cult.

Popular topics:

∑ ∞ π © § ☺ ♀ ♂ ♥ 😸 👸 👽 Unicode Search

Kinesis keyboard doll
Keyboard Reviews ⌨

js logo
JavaScript in Depth

visual css-s
Visual Dictionary of CSS

Linux Logo in Linux Libertine Font
Linux Tutorial

python logo
Python Tutorial

programing mylisp
on Programing Languages

much more at Hacker Cult