数学名家1(Math master 1).doc
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数学名家1(Math master 1)
The spirit of mathematical ─ ─ Archimedes
Archimedes was born in 287 BC in Syracuse, on the southern tip of the peninsula of Sicily. My father was a mathematician and astronomer. Archimedes had a good family upbringing and was sent to Alexandria, Greeces cultural center, at the age of 11. In the so-called wisdom in the name of the city, Archimedes bo group of reading books, learned a lot of knowledge, and made the Euclidean students Erato plug and the cannons protege, study the geometry originally.
Later Archimedes became a great scholar of both the mathematician and the mechanics, and enjoyed the reputation of father of mechanics. The reason is that he discovered the lever principle through a large number of experiments, and introduced many lever propositions with the method of geometrical performance, giving strict proof. Among them is the famous principle of Archimedes, which also has a brilliant and brilliant achievement in mathematics. Although Archimedes works are only about ten works, most of them are geometric works, which play a decisive role in promoting the development of mathematics.
The calculation of sand grains is a book about calculation method and calculation theory. Archimedes to compute fills the universe ball number of sand body, he used a strange imagination, established a new order of magnitude counting method, determined the new unit, said any large number of model was proposed, which is closely related with logarithmic.
The circle measurement, which USES the outer cut of the circle and the inside to the 96 edges, obtains PI, which is the earliest in the history of mathematics, and clearly points out the PI value of the error limit. He also proved that the area of a circle is equal to the area of a positive triangle with a circumference of a circumference and a high radius. We use the method of exhaustion.
The ball and the column, with the skilled use of the inexhaustible method, proved that the surface area of the ball is
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