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dominiczypen.wordpress.com | ||
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thatsmaths.com
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| | | | | The rational numbers $latex {\mathbb{Q}}&fg=000000$ are dense in the real numbers $latex {\mathbb{R}}&fg=000000$. The cardinality of rational numbers in the interval $latex {(0,1)}&fg=000000$ is $latex {\boldsymbol{\aleph}_0}&fg=000000$. We cannot list them in ascending order, because there is no least rational number greater than $latex {0}&fg=000000$. However, there are several ways of enumerating the rational numbers. The... | |
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algorithmsoup.wordpress.com
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| | | | | The ``probabilistic method'' is the art of applying probabilistic thinking to non-probabilistic problems. Applications of the probabilistic method often feel like magic. Here is my favorite example: Theorem (Erdös, 1965). Call a set $latex {X}&fg=000000$ sum-free if for all $latex {a, b \in X}&fg=000000$, we have $latex {a + b \not\in X}&fg=000000$. For any finite... | |
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cuoichutdi.wordpress.com
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| | | | | Liverpool v?a vô ??ch Premier League, ?i?u này t?o nên m?t th?ng kê thú v?: s? cúp vô ??ch c?a các ??i bóng t?o thành m?t dãy s? Fibonacci. ?i?u này là ng?u nhiên hay có m?t cách lí gi?i toán h?c ?n sau nó? Tôi biên bài báo ng?n v? dãy Fibonacci c?ng nh?... | |
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reperiendi.wordpress.com
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| | | https://www.youtube.com/watch?v=um4CBW79ZCg | ||