math mode - A matrix with labels, dashed lines - TeX - LaTeX Stack Exchange
Getting Started with LATEX
LaTEX Math Mode Accents
Accents in Mathematics Mode
arrows - Extensible leftarrow accent above math symbols - TeX - LaTeX Stack Exchange
accents - Trying to use "\~" to generate tilde symbol in math mode - TeX - LaTeX Stack Exchange
How to write a matrix with dashed lines between rows and columns : r/LaTeX
PDF) The Comprehensive LaTeX Symbol List | Jim Smith - Academia.edu
symbols - How does one insert a backslash or a tilde (~) into LaTeX? - TeX - LaTeX Stack Exchange
math mode - Making hats (and other accents) bold - TeX - LaTeX Stack Exchange
PDF) Short Math Guide for L A T E X | ALEX Aleman - Academia.edu
LATEX Command Summary
symbols - Math mode accents - TeX - LaTeX Stack Exchange
LaTeX-exercises
symbols - Math mode accents - TeX - LaTeX Stack Exchange
LaTeX Math Symbols
symbols - Math mode accents - TeX - LaTeX Stack Exchange
Accent marks in math-mode in LaTeX
L¡T¥X Command Summary This listing contains short descriptions of the control sequences that are likely to be handy for users
BibTeX Special Symbols
symbols - Math mode accents - TeX - LaTeX Stack Exchange
User's Guide for the amsmath Package (Version 2.1)
