練習

Wikiの練習とか表示確認。

#tex(\bar{x} = \frac{1}{N} \sum_{i=1}^{N} x_i)
TeX:\bar{x} = \frac{1}{N} \sum_{i=1}^{N} x_i
#mimetex(\bar{x} = \frac{1}{N} \sum_{i=1}^{N} x_i)
mimeTeX:\bar{x} = \frac{1}{N} \sum_{i=1}^{N} x_i
TeX:\sqrt{\frac{1}{N}\sum_{i=1}^N(x_i - \bar{x})^2}