Simple Magic Square - History

History

Magic squares were known to Chinese mathematicians as early as 650 BCE, and to Arab mathematicians possibly as early as the 7th century CE, when the Arabs conquered northwestern parts of the Indian subcontinent and learned Indian mathematics and astronomy, including other aspects of combinatorial mathematics. The first magic squares of order 5 and 6 appear in an encyclopedia from Baghdad circa 983 CE, the Encyclopedia of the Brethren of Purity (Rasa'il Ihkwan al-Safa); simpler magic squares were known to several earlier Arab mathematicians. Some of these squares were later used in conjunction with magic letters, as in (Shams Al-ma'arif), to assist Arab illusionists and magicians.

Read more about this topic:  Simple Magic Square

Famous quotes containing the word history:

    Modern Western thought will pass into history and be incorporated in it, will have its influence and its place, just as our body will pass into the composition of grass, of sheep, of cutlets, and of men. We do not like that kind of immortality, but what is to be done about it?
    Alexander Herzen (1812–1870)

    He wrote in prison, not a History of the World, like Raleigh, but an American book which I think will live longer than that. I do not know of such words, uttered under such circumstances, and so copiously withal, in Roman or English or any history.
    Henry David Thoreau (1817–1862)

    It is true that this man was nothing but an elemental force in motion, directed and rendered more effective by extreme cunning and by a relentless tactical clairvoyance .... Hitler was history in its purest form.
    Albert Camus (1913–1960)