John of London
Encyclopedia
John of London mathematician
Mathematician
A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....

, was praised by Roger Bacon
Roger Bacon
Roger Bacon, O.F.M. , also known as Doctor Mirabilis , was an English philosopher and Franciscan friar who placed considerable emphasis on the study of nature through empirical methods...

 as one of two "perfect" mathematicians, together with Pierre de Maricourt, and superior to two good mathematicians, Campanus of Novara and Master Nicolas. He must have been known to Bacon in Paris in the 1260s.

He may be the John Bandoun also cited by Roger Bacon, and the Paris master, John of London who was learned in astronomy
Astronomy
Astronomy is a natural science that deals with the study of celestial objects and phenomena that originate outside the atmosphere of Earth...

, the designer of a form of astrolabe
Astrolabe
An astrolabe is an elaborate inclinometer, historically used by astronomers, navigators, and astrologers. Its many uses include locating and predicting the positions of the Sun, Moon, planets, and stars, determining local time given local latitude and longitude, surveying, triangulation, and to...

and author of an influential table of stellar coordinates.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK