只认识6的请举手……

答案在下面，想清楚了再看~

1. 勒让德常数
2. 1/2^0+1/2^1+1/2^2+…+…趋近于2
3. 3在HTML语言里的Unicode代码
4. mod=同余
5. 黄金分割
6. 3的阶乘
7. 6.999999999999999999999999->也该往7靠一点了吧
8. 8的二进制图像
9. 9的四进制表示
10. 贾宪三角形，杨辉三角形（二项式系数）
11. 16进制编码
12. 1728的立方根=12

Tags: 数学, 科普, 钟

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