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corbettmaths.com | ||
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www.shapeoperator.com
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| | | | | [AI summary] The text discusses the use of geometric algebra to solve a sunset problem posed by Robert Vanderbei, avoiding the need for angles. It highlights the advantages of geometric algebra over classical trigonometry, complex numbers, and other methods, emphasizing its coordinate-free nature and applicability to higher dimensions. The text also recommends resources for learning geometric algebra and mentions related problems and experiments for estimating Earth's size. | |
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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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revisionmaths.com
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| | | | | Trigonometry GCSE Maths Revision section covering: Sin, Cos, Tan, Pythagoras, Sine and Cosine Rule, Similar Triangles and Congruency. | |
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www.johndcook.com
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| | | How the Pythagorean theorem, law of sines, and law of cosines translate to hyperbolic geometry. | ||
