\( ax^{2}+bx+c=0 \) \[ x= \frac {-b \pm \sqrt{b^{2} -4ac} }{2a} \tag{1} \]
極限 ¥displaystyle ¥lim_{n ¥to 0} n = 0
\(\displaystyle \lim_{n \to 0} n = 0\)
分数 ¥frac {1}{2}
\(\frac {1}{2}\)
累乗 x^{2}
\(x^{2}\)
平方根 ¥sqrt{4}
\( \sqrt{4} \)
± ¥記号pm \(\pm\)