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2 Answered Questions for the topic math history

Math History Calculus Analysis

03/14/19

Who came up with the $\\varepsilon$-$\\delta$ definitions and the axioms in Real Analysis?

I've seen a lot of definitions of notions like boundary points, accumulation points, continuity, etc, and axioms for the set of the real numbers. But I have a hard time accepting these as "true"... more
Math History Geometry Trigonometry

03/13/19

Why are turns not used as the default angle measure?

Why is $2\\pi$ radians not replaced by $1$ turn in formulas? The majority of them would be simpler. If such a replacement was proposed earlier, why was it declined?

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