Su[m]ma de arithmetica geometria proportioni [et] proportionalita

Pacioli, Luca, approximately 1445-1517, Burndy Library, donor. DSI · [Venice : Paganinus de Paganinis] · 37 pictures

Summa de arithmetica, geometria, proportioni et proportionalita is a mathematics treatise by Luca Pacioli, printed in Venice around 1494 by Paganinus de Paganinis for scholars and merchants learning arithmetic and geometry. Its diagrams are simple line figures with lettered points: a rectangle with crossing diagonals, a circle with inscribed chords and numbered segments, and a triangle divided by lines from an apex, labelled with letters for reference in the text, so a designer might borrow their clean, diagrammatic geometry for technical layouts.

Mathematics · Arithmetic · Geometry · Ratio and proportion · Incunabula

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