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Pythagoras was a Greek philosopher and mathematician. He is best known for his contributions to mathematics, particularly the Pythagorean Theorem, and for founding the Pythagorean religion, whose adherents may have contributed some of the mathematical work that is often ascribed to him.

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Pythagoras often receives credit for the discovery of a method for calculating the measurements of triangles, which is known as the Pythagorean theorem. However, there is some debate as to his actual contribution the theorem.

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The ancient Greek philosopher Pythagoras lived from 570 to 490 BCE, spending his early years in Samos, Greece, per the Stanford Encyclopedia of Philosophy. At age 40, he moved to Croton, Italy, where most of his philosophical activity took place.

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Pythagoras was educated in Tyre, Samos and Miletus, which is present-day Syria and Asia Minor, as well as Egypt. He later founded his own mystery school in Croton, which is southern Italy.

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The exact cause of Pythagoras' death is unknown. There are numerous stories related to the circumstances of his death, but none is confirmed as true.

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Although one of Pythagoras' contributions to mathematics was the Pythagorean Theorem, he also proved other axioms, worked on prime and composite numbers and found an irrational number. Pythagoras was a Greek mathematician who was a student of Thales, another Greek mathematician.

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Pythagoras is most famous for the Pythagorean Theorem, which shows the relationship between the length of the two legs of a right triangle and the length of its hypotenuse. He is also famous for other aspects of his mathematical and philosophical insights. He was a mystic as well as a mathematician

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The Pythagorean theorem states that when a triangle has a right angle and all three sides are squared, the longest side squared will equal the size of the smaller two sides squared and summed. It is usually expressed as a^2+b^2=c^2.

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Trigonometry developed in many parts of the world over thousands of years, but the mathematicians who are most credited with its discovery are Hipparchus, Menelaus and Ptolemy. Isaac Newton and Euler contributed developments to bring trigonometry into the modern age.