Somma di aritmetica, geometria, proporzioni e proporzionalit%a
Somma di aritmetica, geometria, proporzioni e proporzionalità is a 1494 mathematics treatise by Luca Pacioli, edited by Pompilius and Giorgio Sommariva, held by Heidelberg University Library and drawn from its Cicognara collection of architectural treatises. The pictures are simple geometric diagrams of rhombi, circles and inscribed polygons, with letter labels and ruled lines in black on pale paper. A designer could take their clean, schematic line work and the lettered construction system as a model for minimal technical diagrams.
