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ECMAScript (Javascript) library, distributed under the GPL license, that creates charts from (x)HTML tables.

Columns filled with numbers turned into images

ECMAScript (Javascript) library, distributed under the GPL license, that creates charts from (x)HTML tables.

 
GPL-distributed Python software that draws sunrise, sunset and daylight graphs.

Sunrise/sunset hours, all year long

GPL-distributed Python software that draws sunrise, sunset and daylight graphs.

 
Rules and interpretation of a card game in which rules are created by its players.

How to make both brain hemispheres work with 52 cards

Rules and interpretation of a card game in which rules are created by its players.