latex如何输入各种矩阵 直接用matrix、pmatrix、bmatrix、Bmatrix、vmatrix或者Vmatrix环境:第二种方法 array插入方程组
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引用
usepackage{amsmath,amssymb,amsfonts}
一、第一种方法
直接用matrix、pmatrix、bmatrix、Bmatrix、vmatrix或者Vmatrix环境:
begin{equation}begin{gathered}begin{matrix} 0 & 1 \ 1 & 0 end{matrix}quadbegin{pmatrix} 0 & -i \ i & 0 end{pmatrix}quadbegin{bmatrix} 0 & -1 \ 1 & 0 end{bmatrix}quadbegin{Bmatrix} 1 & 0 \ 0 & -1 end{Bmatrix}quadbegin{vmatrix} a & b \ c & d end{vmatrix}quadbegin{Vmatrix} i & 0 \ 0 & -i end{Vmatrix}end{gathered}end{equation}
最常用矩阵插入
begin{equation}begin{bmatrix} a_{11} & a_{12} & a_{13} \a_{21} & a_{22} & a_{23} \a_{31} & a_{32} & a_{33} end{bmatrix}end{equation}
对角矩阵插入：
begin{equation}begin{bmatrix} a_{11} & & & \ & a_{22} & & \ & & a_{33}&\ & & &a_{44} end{bmatrix}end{equation}
begin{equation*}begin{bmatrix} {rm var}(widetilde{d_1^2}) &{rm var}(widetilde{d_r^2})&cdots&{rm var}(widetilde{d_r^2}) \{rm var}(widetilde{d_r^2})&{rm var}(widetilde{d_2^2})&cdots & {rm var}(widehat{d_r^2})\vdots&vdots& ddots&vdots \{rm var}(widetilde{d_r^2})&{rm var}(widetilde{d_r^2})&cdots&{rm var}(widetilde{d_m^2}) end{bmatrix}end{equation*}
二、第二种方法 array begin{equation}left[begin{array}{ccc}a_{11} & a_{12} & a_{13} \a_{21} & a_{22} & a_{23} \a_{31} & a_{32} & a_{33} end{array}right] end{equation}
begin{equation}left[begin{array}{c}varphi \theta \psiend{array}right]=left[begin{array}{ccc}a_{11} & a_{12} & a_{13} \a_{21} & a_{22} & a_{23} \a_{31} & a_{32} & a_{33}end{array}right]left[begin{array}{c}b_{1} \ b_{2} \b_{3}end{array}right]end{equation}
三、插入方程组 begin{equation}left{begin{array}{c} a_{11}x_1+a_{12}x_2+cdots+a_{1n}x_n=b_1 \ a_{21}x_1+a_{22}x_2+cdots+a_{2n}x_n=b_2 \ cdots \ a_{n1}x_1+a_{n2}x_2+cdots+a_{nn}x_n=b_nend{array}right.end{equation}
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