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math.HO2026
Spherical trigonometry before the modern era:The treatise of Nasir al-Din al-Tusi
Athanase Papadopoulos
This is an overview of Nasir al-Din al-Tusi's Treatise of the quadrilateral, an invaluable 13th century document on spherical geometry which was translated into French in 1891. The…
math.HO2026
Johann Heinrich Lambert's memoir "Theorie der Parallellinien": A review with commentary
Athanase Papadopoulos, Guillaume Théret
We review the memoir \emph{heorie der Parallellinien} by Johann Heinrich Lambert, written in 1766. Lambert, a victim of the prejudices of his time, conceived this memoir as an atte…
math.HO2026
Simone Weil, Andr{é} Weil, Bourbaki and Pythagorean mathematics
Athanase Papadopoulos
Simone Weil is one of the most prominent 20th century French philosophers. She is the sister of Andr{é} Weil, the renowned mathematician, the father of modern algebraic geometry an…