mathjax;latex
| \lfloor | $\lfloor$ |
| \rfloor | $\rfloor$ |
| \sum_{i=1}^{n} | $\sum_{i=1}^{n}$ |
| \mu | $\mu$ |
| \mid | $\mid$ |
| \Leftrightarrow | $\Leftrightarrow$ |
| \sqrt{k} | $\sqrt{k}$ |
| \frac{n}{d} | $\frac{n}{d}$ |
| \varphi | $\varphi$ |
| \sqrt[a]{x} | $\sqrt[a]{x}$ |
| \epsilon | $\epsilon$ |
| \sigma | $\sigma$ |
| \cdot | $\cdot$ |
| \in | $\in$ |
| \sigma | $\sigma$ |
| \infty | $\infty$ |
| \equiv | $\equiv$ |
| \prod_{i=1}^n | $\prod_{i=1}^n$ |
| \pmod{m} | $\pmod{m}$ |
| \binom{a}{b} | $\binom{a}{b}$ |
