/explore
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www.themathdoctors.org | ||
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liorsinai.github.io
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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. | |
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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. | |
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www.sirver.net
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| | | [AI summary] The article explains the geometric interpretation of the least squares problem using linear algebra concepts like projection and column spaces. | ||
