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www.themathdoctors.org
| | jaydaigle.net
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| | We continue our exploration of what numbers are, and where mathematicians keep finding weird ones. In the first three parts we extended the natural numbers in two ways: algebraically and analytically. Those approaches gave overlapping but distinct sets of numbers. This week we combine them to get the complex numbers, and see some hints of why the complex numbers are so useful-and so frustrating.
| | www.kuniga.me
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| | NP-Incompleteness:
| | www.johndcook.com
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| | Analogs of Euler's formula exp(ix) = cos(x) + i sin(x) in other number systems, namely dual numbers and double numbers.
| | gilkalai.wordpress.com
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| Yael Tauman Kalai: Delegating Computation via No-Signaling Strategies. Ladies and Gentelmen, Here is, exclusively for our readers, Yael Tauman Kalai's ICM2018 paper: Delegating Computation via No-Signaling Strategies. The opportunity to present the paper arose when a week ago I attended a great lecture on game theory by Yair Tauman and met there Adam Kalai, Yael,