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| playground:playground [2013/06/16 20:03] – external edit 127.0.0.1 | playground:playground [2026/08/29 07:59] (current) – external edit 127.0.0.1 | ||
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| + | ====== PlayGround ====== | ||
| + | < | ||
| + | \frac{3}{4 \pi} | ||
| + | \lim_{n \to \infty} | ||
| + | \sum_{k=1}^n \frac{1}{k^2} = \frac{\pi^2}{6}\\ | ||
| + | \it{f}(x) = \frac{1}{\sqrt{x} x^2}\\ | ||
| + | </ | ||