Latex 公式语法

分式

$$ y = \frac 1x $$

根号

$$ r = \sqrt{x^2 + y^2} $$

圆括号矩阵

$$ H = \begin{pmatrix} h_{11} & h_{12} & h_{13} \ h_{21} & h_{22} & h_{23} \ h_{31} & h_{32} & h_{33} \ \end{pmatrix} $$

方括号矩阵

$$ H = \begin{bmatrix} h_{11} & h_{12} & h_{13} \ h_{21} & h_{22} & h_{23} \ h_{31} & h_{32} & h_{33} \ \end{bmatrix} $$

花括号矩阵

$$ H = \begin{Bmatrix} h_{11} & h_{12} & h_{13} \ h_{21} & h_{22} & h_{23} \ h_{31} & h_{32} & h_{33} \ \end{Bmatrix} $$

行列式

$$ H = \begin{vmatrix} h_{11} & h_{12} & h_{13} \ h_{21} & h_{22} & h_{23} \ h_{31} & h_{32} & h_{33} \ \end{vmatrix} $$

范数

$$ H = \begin{Vmatrix} h_{11} & h_{12} & h_{13} \ h_{21} & h_{22} & h_{23} \ h_{31} & h_{32} & h_{33} \ \end{Vmatrix} $$