Share this on:
 E-mail
81
VIEWS
0
COMMENTS
 
SHARES
About this iReport
  • Not verified by CNN

  • Click to view AHDU101's profile
    Posted February 24, 2013 by
    AHDU101
    Location
    Dhaka, Bangladesh

    More from AHDU101

    Al-khorezmi:The father of Algebra

     
    The word "Algebra" comes from a phrase (in bold below) in the title of an Arab book "Kitab al muhtasar fi hisab al gabr w'al muqubalah." This has been translated as "A compact introuction (book) to calculation using rules of completion and reduction," but Solomon Gandz has suggested "Al gabr" comes from Babylonian "Gabru" meaning solution of an equation, and that "muqubalah" (q reads like k) was its equivalent in Arabic. The book covered simple equations like the one in the preceding section, also quadratic ones involving x2, as well as other areas such as geometry and the division of inheritances.

    Its author, Muhammad ibn Musa Al-Khorezmi (lived about 780-850) was the chief mathematician in the "House of Wisdom", an academy of sciences established in Baghdad by the Caliph Al Ma'mun, son of Harun Al Rashid of "Arabian Nights" fame. The "House of Wisdom" was involved in Al Ma'mun's expedition to measure the size of the Earth, which Al-Khorezmi afterwards estimated to have a circumference of 21000 Arab miles. (We are not sure how big the Arab mile was, the actual figure is about 25000 of our miles; more about such estimates.

    Al-Khorezmi's family (and possibly he as well) apparently came from the oasis of Khorazem, at the southern end of the Aral Sea, in what is now Uzbekistan. He is also credited with helping establish among the Arabs the Indian numbering system, using decimal notation and the zero. Previous systems of writing numbers used letters, like the Roman numeral systems or the cruder ones of the Greeks and Hebrews. When Al-Khorezmi's book on the new system reached Europe, the Europeans called its use "algorism" or "algorithm," a corruption of the author's name. Today "algorithm" means method of calculation, and the rise of computers has led to extensive work on developing efficient computer algorithms.
    • TAGS:

    What do you think of this story?

    Select one of the options below. Your feedback will help tell CNN producers what to do with this iReport. If you'd like, you can explain your choice in the comments below.
    Be and editor! Choose an option below:
      Awesome! Put this on TV! Almost! Needs work. This submission violates iReport's community guidelines.

    Comments

    Log in to comment

    iReport welcomes a lively discussion, so comments on iReports are not pre-screened before they post. See the iReport community guidelines for details about content that is not welcome on iReport.

    Add your Story Add your Story