From various sources we know that the Swiss instrument maker and mathematician Jost Bürgi (1552-1... more From various sources we know that the Swiss instrument maker and mathematician Jost Bürgi (1552-1632) found a new way of calculating any sine value. Many mathematicians and historians of mathematics have tried to reconstruct his so-called "Kunstweg" ("skillful / artful method"), but they did not succeed. Now a manuscript by Bürgi himself has been found which enables us to understand his procedure. The main purpose of this article is to explain Bürgi's method. It is totally different from the conventional way to calculate sine values which was used until the 17th century. First we will give a brief overview of the early history of trigonometry and the traditional methods for calculating sines.
The Italian Renaissance is remembered best for its magnificent works of art and architecture. The... more The Italian Renaissance is remembered best for its magnificent works of art and architecture. The words themselves evoke the paintings and sculptures of Michelangelo, Leonardo, Raffaello, Botticelli, and the other great masters of the period, while the churches, palaces, and plazas of Italy continue to inspire wonder to this very day. The Renaissance is also remembered for certain masterpieces of modern literature and philosophy such as the essays of Petrarch, the stories of Boccaccio, and The Prince of Machiavelli; but the other accomplishments of the period are largely forgotten.
Abstracta Iranica Revue Bibliographique Pour Le Domaine Irano Aryen, May 15, 2002
Revue bibliographique pour le domaine irano-aryen Volume 25 | 2004 Comptes rendus des publication... more Revue bibliographique pour le domaine irano-aryen Volume 25 | 2004 Comptes rendus des publications de 2002 « A New Treatise by al-Kâshî on the Depression of the Visible Horizon », in :...
X REVIEWED BY J RAN FRIBERG This is a fascinating account of the nearly unbelievable ups ad downs... more X REVIEWED BY J RAN FRIBERG This is a fascinating account of the nearly unbelievable ups ad downs of the Archimedes palimpsest , a Byzantine codex containing, under the text of a prayer book, a small library of unique ancient texts, including exceptionally important Archimedes treatises. The account is written in alternating chapters by William Noel, Curator of Manuscripts at the Walters Art Museum,
From various sources we know that the Swiss instrument maker and mathematician Jost Bürgi (1552-1... more From various sources we know that the Swiss instrument maker and mathematician Jost Bürgi (1552-1632) found a new way of calculating any sine value. Many mathematicians and historians of mathematics have tried to reconstruct his so-called "Kunstweg" ("skillful / artful method"), but they did not succeed. Now a manuscript by Bürgi himself has been found which enables us to understand his procedure. The main purpose of this article is to explain Bürgi's method. It is totally different from the conventional way to calculate sine values which was used until the 17th century. First we will give a brief overview of the early history of trigonometry and the traditional methods for calculating sines.
The Italian Renaissance is remembered best for its magnificent works of art and architecture. The... more The Italian Renaissance is remembered best for its magnificent works of art and architecture. The words themselves evoke the paintings and sculptures of Michelangelo, Leonardo, Raffaello, Botticelli, and the other great masters of the period, while the churches, palaces, and plazas of Italy continue to inspire wonder to this very day. The Renaissance is also remembered for certain masterpieces of modern literature and philosophy such as the essays of Petrarch, the stories of Boccaccio, and The Prince of Machiavelli; but the other accomplishments of the period are largely forgotten.
Abstracta Iranica Revue Bibliographique Pour Le Domaine Irano Aryen, May 15, 2002
Revue bibliographique pour le domaine irano-aryen Volume 25 | 2004 Comptes rendus des publication... more Revue bibliographique pour le domaine irano-aryen Volume 25 | 2004 Comptes rendus des publications de 2002 « A New Treatise by al-Kâshî on the Depression of the Visible Horizon », in :...
X REVIEWED BY J RAN FRIBERG This is a fascinating account of the nearly unbelievable ups ad downs... more X REVIEWED BY J RAN FRIBERG This is a fascinating account of the nearly unbelievable ups ad downs of the Archimedes palimpsest , a Byzantine codex containing, under the text of a prayer book, a small library of unique ancient texts, including exceptionally important Archimedes treatises. The account is written in alternating chapters by William Noel, Curator of Manuscripts at the Walters Art Museum,
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