# Topics

28 topics group every LaTeX math command, environment, and symbol by what it does, whichever package defines it.

https://texform.dev/latex/topics

## Symbols

- [Greek letters](https://texform.dev/latex/topics/greek): Greek and variant Greek letters. 54 symbols.
- [Letter-like symbols](https://texform.dev/latex/topics/letter-like): Letter-like symbols such as \infty, \partial, and \hbar. 61 symbols.
- [Binary operators](https://texform.dev/latex/topics/binary-operators): Binary operators such as plus, times, and set operations. 75 symbols, 1 command.
- [Relations](https://texform.dev/latex/topics/relations): Equality, order, and set relations. 103 symbols.
- [Negated relations](https://texform.dev/latex/topics/negated-relations): Negated relations such as \neq and \nsubseteq. 58 symbols, 1 command.
- [Arrows](https://texform.dev/latex/topics/arrows): Arrows, harpoons, and maps. 64 symbols, 5 commands.
- [Big operators](https://texform.dev/latex/topics/big-operators): Variable-sized operators such as sums and integrals. 18 symbols.
- [Delimiters](https://texform.dev/latex/topics/delimiters): Fences, sizing commands, and stretchy bars. 41 symbols, 27 commands.
- [Blackboard bold (bboldx)](https://texform.dev/latex/topics/blackboard-bold): Blackboard-bold letters and delimiters from bboldx. 168 symbols.
- [Miscellaneous symbols](https://texform.dev/latex/topics/miscellaneous): Dots, primes, suits, and other leftover symbols. 24 symbols, 7 commands.

## Structure

- [Fractions and roots](https://texform.dev/latex/topics/fractions-roots): Fractions, binomials, and roots. 21 commands.
- [Accents](https://texform.dev/latex/topics/accents): Hats, bars, tildes, and other decorations. 45 commands.
- [Functions and operators](https://texform.dev/latex/topics/functions): Named functions, operator names, and limits. 74 commands.
- [Large operators](https://texform.dev/latex/topics/operators-limits): Big operators, sidesets, and limit placement. 5 commands.
- [Matrices](https://texform.dev/latex/topics/matrices): Matrix environments and matrix-building commands. 10 environments, 8 commands.
- [Alignment](https://texform.dev/latex/topics/alignment): Multi-line equation, alignment, and cases environments. 25 environments.
- [Labels and tags](https://texform.dev/latex/topics/cross-refs): Labels, references, and equation tags. 6 commands.

## Type and space

- [Fonts and styles](https://texform.dev/latex/topics/fonts-styles): Math alphabets, text fonts, and size/style switches. 80 commands.
- [Boxes and text](https://texform.dev/latex/topics/boxes-text): Boxed formulas, text-mode inserts, and captions. 21 commands.
- [Spacing](https://texform.dev/latex/topics/spacing): Horizontal and vertical space, phantoms, and struts. 32 commands.
- [Layout and breaks](https://texform.dev/latex/topics/layout): Line breaks, alignment shoves, raises, and rules. 24 commands.

## physics package

- [Physics: quantities](https://texform.dev/latex/topics/physics-quantities): Absolute values, commutators, and automatic fences. 28 commands.
- [Physics: vectors](https://texform.dev/latex/topics/physics-vectors): Bold vectors, nabla, and vector calculus. 10 commands.
- [Physics: derivatives](https://texform.dev/latex/topics/physics-derivatives): Differentials and ordinary, partial, or functional derivatives. 14 commands.
- [Physics: bra-ket](https://texform.dev/latex/topics/physics-braket): Dirac notation and related inner/outer products. 22 commands.
- [Physics: matrices](https://texform.dev/latex/topics/physics-matrices): Physics-package matrix constructors. 27 commands.
- [Physics: functions](https://texform.dev/latex/topics/physics-functions): Physics-package named functions that are not in base. 17 commands.
- [Physics: annotations](https://texform.dev/latex/topics/physics-annotations): Quad-text helpers such as \qif and \qthen. 24 commands.