**Summary**

Al-Khwārizmī was born sometime around 780, and died around 850. He is most famous for his contributions to Algebra and Trigonometry.

Although not as well known as his more modern colleagues, he is considered one of the fathers of algebra.

**Life**

It is not known for sure exactly where he was born, but he spent most of his working life as a scholar at an academy located in Baghdad. Little else is known about his personal life— his work however withstood the test of time and went on to influence many other mathematicians.

**Contributions to Mathematics**

Al-Khwārizmī is most famous for **"Hisab al-jabr w'al-muqabala"**, his journal on algebra. The title translates into Latin as **"Algebra et Almucabala"**, which then became the name of the discipline of mathematics contained in the book— algebra. The book introduces natural numbers, and goes on to show how to solve equations by breaking them down into one of six standard forms. Examples include:

ax^{2}=c (squares equal number)

bx=c (roots equal number)

Although Al-Khwārizmī did not use symbols, he went to great length explaining how to solve these equations. In Al-Khwārizmī's own words, the journal was to teach "*what is easiest and most useful in arithmetic, such as men constantly require in cases of inheritance, legacies, partition, lawsuits, and trade, and in all their dealings with one another, or where the measuring of lands, the digging of canals, geometrical computations, and other objects of various sorts and kinds are concerned.*"

Although seemingly basic in nature, Al-Khwārizmī's algebra was the first step in many towards modern mathematics.

**Citation**

J. Danesh, Retrieved February 25th 2008, from:

http://www.jazirehdanesh.com/find.php?item=1.600.896.en

E. Friedman, Retrieved February 25th 2008, from:

http://www.stetson.edu/~efriedma/periodictable/html/Am.html

Its interesting to read and learn about someone who lived so long ago. I don't know how much information was available because of how old he is, but a little more info could go a long way!

ReplyOptionsNicely done! The writing was clear and easy to understand, and would definitely be a good source for quick referencing. Further information could have included, though, what exactly the six standard forms are, or for what reason(s) his works were the first step toward modern math.

ReplyOptionsNice job. I didn't think you could find information about people that are that old sweet job.

ReplyOptionsVery nicely done. Finding useful information on a person that old must have

been tricky. A little more information on his life would be nice but it probably

can't be done….good job.

ReplyOptionsGood work on the biography Barnes. Interesting learning about a man making steps in mathematics that long ago. You must have had to dig deep for the information. You'll have to help the class with the pronunciation of some of those words. Study up on your arabic over the break!

ReplyOptionsGood job Mr. Barnes. I like the way you formatted your page, it allows the reader to easily identity major points of interest. It is amazing that information on a mathematician this far back in time is still in circulation. I am surprised that you found any information to be honest. In addition, you need to help me pronounce his name; it is far too unusual for me to attempt. This way I save myself some embarrassment.

ReplyOptionsGood job on finding so much information about someone from so long ago Barnes. Your report has lots of information and is well laid out. You should try to add a pronunciation key for his name and the name of his journal.

ReplyOptions