Docstoc

Al Khwarizmi

Document Sample
Al Khwarizmi Powered By Docstoc
					 Muhammad ibn Musa al-Khwarizmi
• Muhammad ibn Musa al-Khwarizmi
  (approx 800-847 CE)
• Born around 800 CE in Khwarizm,
  now in Uzbekistan.
• Al-Khwarizmi lived in Baghdad,
  where he worked at the “House of
  Wisdom” (Dar al-Hikma) under the
  Caliph Harun al-Rashid.
• What is the origin of the word
  Algorithm?

Fundamentals of Software
Development 1                        Slide 1
                           Algorithm
• The English word "algorithm"
  derives from the Latin form of al-
  Khwarizmi's name.
• He developed the concept of an
  algorithm in mathematics, and is
  thus sometimes given the title of
  "grandfather of computer science".




Fundamentals of Software
Development 1                          Slide 2
                           Some Contributions
• Wrote a book in Arabic titled al-jabr that gave Algebra its name
      – arithmetic of variables
      – describes the natural numbers
      – introduces geometric proofs for algebra
• Al-Khwarizmi called variables “shay”
      – Arabic for “thing”. Spanish wrote xay (“x” was “sh” in Spain).
      – In time this word was abbreviated as x.
• In addition to this treatise, al-Khwarizmi wrote works on
  astronomy, on the Jewish calendar, and on the Hindu numeration
  system.
• He also made major contributions to the fields of algebra,
  trigonometry, astronomy, geography and cartography.


Fundamentals of Software
Development 1                                                            Slide 3
                           Sources
• http://www.pbs.org/empires/islam/
• http://www-groups.dcs.st-
  and.ac.uk/~history/Mathematicians/Al-
  Khwarizmi.html
• http://en.wikipedia.org/wiki/Al-Khwarizmi




Fundamentals of Software
Development 1                                 Slide 4

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:846
posted:8/22/2012
language:English
pages:4