| ▲ | voxleone 5 hours ago | |
Beautiful math tricks. For things like these I think math education should start with sets and groups instead of numbers. https://d1gesto.blogspot.com/2025/11/math-education-what-if-... | ||
| ▲ | 4 hours ago | parent | next [-] | |
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| ▲ | cbm-vic-20 3 hours ago | parent | prev [-] | |
I like Chapter 1 of Evan Chen's An Infinitely Large Napkin for some more theory. | ||