Our suggestions

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.

 
Well-thought articles for question-digging readers.

Elaboration of our reflexions

Well-thought articles for question-digging readers.