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Xu Guangqi
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Xu Guangqi or Hsü Kuang-ch'i, also known by his baptismal name Paul or Paul Siu, was a Chinese agronomist, astronomer, mathematician, politician, and writer during the late Ming dynasty. Xu was appoin
Portrait of Xu Guangqi
Portrait of Xu Guangqi
Xu Guangqi with Matteo Ricci (left) From Athanasius Kircher's China Illustrata, 1667
Xu Guangqi with Matteo Ricci (left) From Athanasius Kircher's China Illustrata, 1667
Tomb of Xu Guangqi in Guangqi Park, Xujiahui District, Shanghai, China
Tomb of Xu Guangqi in Guangqi Park, Xujiahui District, Shanghai, China
Xu Guangqi's work on military matters Mr Xu's Amateur Observations
Xu Guangqi's work on military matters Mr Xu's Amateur Observations
Euclid's Elements
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The Elements is a mathematical treatise written c. 300 BC by the Ancient Greek mathematician Euclid.
Xu Guangqi
…Jesuits Matteo Ricci and Sabatino de Ursis and assisted their translation of several classic Western texts into Chinese, including part of Euclid's Elements. He was also the author of the Nong Zheng Quan Shu, a treatise on agriculture. He is one of the "Three Pillars of Chinese Catholicism". The Roman…
Papyrus Oxyrhynchus 29, a fragment of Euclid's Elements dated to c. 3rd–4th century AD. Found at Oxyrhynchus, the diagram accompanies Book II, Proposi
Papyrus Oxyrhynchus 29, a fragment of Euclid's Elements dated to c. 3rd–4th century AD. Found at Oxyrhynchus, the diagram accompanies Book II, Proposition 5.
Euclid's subdivision of line segment AB into the golden ratio from Book II Proposition 11, with an arc added to the traditional diagram. The construct
Euclid's subdivision of line segment AB into the golden ratio from Book II Proposition 11, with an arc added to the traditional diagram. The construction finds the midpoint E of side AC of square ABCD, intersects line AC at F with a circle of radius EB, and constructs a second square AFGH, whose vertex H is the subdivision point.
The Pythagorean theorem in MS. Vat.gr.190
The Pythagorean theorem in MS. Vat.gr.190
A woman teaching geometry, from a manuscript (c. 1309–1316) of Adelard of Bath's 12th century translation of the Elements from Arabic into Latin
A woman teaching geometry, from a manuscript (c. 1309–1316) of Adelard of Bath's 12th century translation of the Elements from Arabic into Latin