🔰matrix

LaTeX ⟩ matrix

example
code

abcd\begin{matrix} a & b \\ c & d \end{matrix}

\begin{matrix} a & b \\ c & d \end{matrix}

[abcd]\begin{bmatrix} a & b \\ c & d \end{bmatrix}

\begin{bmatrix} a & b \\ c & d \end{bmatrix}

abcd\begin{vmatrix} a & b \\ c & d \end{vmatrix}

\begin{vmatrix} a & b \\ c & d \end{vmatrix}

(abcd)\begin{pmatrix} a & b \\ c & d \end{pmatrix}

\begin{pmatrix} a & b \\ c & d \end{pmatrix}

[000000000]\begin{bmatrix} 0 & 0 & 0 \\ 0 & 0 & 0 \\ 0 & 0 & 0 \end{bmatrix}

% zero matrix
\begin{bmatrix}
  0 & 0 & 0 \\ 
  0 & 0 & 0 \\ 
  0 & 0 & 0
\end{bmatrix}

[100010001]\begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{bmatrix}

% identity matrix
\begin{bmatrix}    
  1 & 0 & 0 \\    
  0 & 1 & 0 \\   
  0 & 0 & 1  
\end{bmatrix} 

[a1an]\begin{bmatrix} a_{1} & & \\ & \ddots & \\ & & a_{n} \end{bmatrix}

% diagonal matrix
\begin{bmatrix}
  a_{1} &      &     \\ 
  &     \ddots &     \\ 
  &     &      a_{n}
\end{bmatrix}

a11a12a13a21a22a23a31a32a33\begin{Vmatrix} a_{11} & a_{12} & a_{13} \\ a_{21} & a_{22} & a_{23} \\ a_{31} & a_{32} & a_{33} \end{Vmatrix}

% V matrix
\begin{Vmatrix}
  a_{11} & a_{12} & a_{13} \\ 
  a_{21} & a_{22} & a_{23} \\
  a_{31} & a_{32} & a_{33} 
\end{Vmatrix}

{a11a12a13a21a22a23a31a32a33}\begin{Bmatrix} a_{11} & a_{12} & a_{13} \\ a_{21} & a_{22} & a_{23} \\ a_{31} & a_{32} & a_{33} \end{Bmatrix}

% B matrix
\begin{Bmatrix}
  a_{11} & a_{12} & a_{13} \\ 
  a_{21} & a_{22} & a_{23} \\
  a_{31} & a_{32} & a_{33} 
\end{Bmatrix}

[a11a12a1na21a22a2nam1am2amn]\begin{bmatrix} a_{11} & a_{12} & \cdots & a_{1n} \\ a_{21} & a_{22} & \cdots & a_{2n} \\ \vdots & \vdots & \ddots & \vdots \\ a_{m1} & a_{m2} & \cdots & a_{mn} \end{bmatrix}

👉 矩陣

% big matrix
\begin{bmatrix}
   a_{11} & a_{12} & \cdots & a_{1n} \\
   a_{21} & a_{22} & \cdots & a_{2n} \\
   \vdots & \vdots & \ddots & \vdots  \\
   a_{m1} & a_{m2} & \cdots & a_{mn} 
\end{bmatrix}

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