Math History
1. Pythagoreans discover irrational numbers. 532 BC3. Archimedes determines formulas for the area and volume of a sphere. 250 B.C.4. Eratosthenes determines the circumferences of Earth. 5. Appollonius studies conic sections. 6. Al-Khowarizmi uses zero. 830 A.D.7. Rudolff introduces the radical sign. 1525 A.D.
Common topics in this essay:
,
Freed Flaw',
Analytical Engine,
Pascal Fermat,
Principia Mathematica,
Marc Dovico,
II Books,
Whitehead Russell,
1748 ad,
invents calculus,
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