Matrices: Lecture Notes

Examples:

#	1	2	3	4	5	6
Name	$A$	$E$	$S$	$L$	$T$	$I$
Matrix	$\begin{bmatrix} 1 & 2 & 3 \\ \boldsymbol{\color{green}{4}} & 5 & 6 \end{bmatrix}$	$\begin{bmatrix} 😀 \\ 😁 \\ 😎 \\ 😜 \end{bmatrix}$	$\begin{bmatrix} \color{green}{\bf \text{Bla}} \end{bmatrix}$	$\begin{bmatrix} a & b \\ c & d \\ e & f \\ g & h \\ i & \boldsymbol{\color{green}{j}} \end{bmatrix}$	$\begin{bmatrix} 65.7 & 62.4 & 73.8 & \boldsymbol{\color{green}{76.6}} & 75.0 \end{bmatrix}$	$\begin{bmatrix} 1 & 0 & 0 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 1 & \boldsymbol{\color{green}{0}} \\ 0 & 0 & 0 & 1 \end{bmatrix}$
Size	$2 \times 3$	$4 \times 1$	$1 \times 1$	$5 \times 2$	$1 \times 5$	$4 \times 4$
Sample Item	$a_{2,1} = 4$	$e_{3,1} = 😎$	$s_{1,1} = \text{Bla}$	$l_{5,2} = j$	$t_{1,4} = 76.6$	$i_{3,4} = 0$