The plugin’s main feature is snippets, which help you write LaTeX quicker through shortcuts and text expansion! For example, type
- “sqx” instead of “\sqrt{x}”
- “a/b” instead of “\frac{a}{b}”
- “par x y ” instead of “\frac{\partial x}{\partial y}”
See Gilles Castel’s writeup for more information.
The plugin comes with a set of default snippets, loosely based on Gilles Castel’s. You can modify them, remove them, and write your own.
Usage
To get started, type “dm” to enter display math mode. Try typing the following:
-
“xsr” → “x^{2}”.
-
“x/y Tab” → “\frac{x}{y}”.
-
“sin @t” → “\sin \theta”.
Have a look at the cheatsheet for a list of commonly used default snippets.
Once these feel familiar, you can check out the default snippets for more commands. e.g.
-
“par Tab f Tab x Tab” → “\frac{\partial f}{\partial x}”.
-
“dint Tab 2pi Tab sin @t Tab @t Tab” → “\int_{0}^{2\pi} \sin \theta , d\theta”.
You can also add your own snippets! See here for more info on writing snippets. You can view snippets written by others and share your own snippets here.
Features
Auto-fraction
Lets you type “1/x” instead of “\frac{1}{x}”.
For example, it makes the following expansions:
x/→\frac{x}{}(a + b(c + d))/→\frac{a + b(c + d)}{}
and moves the cursor inside the brackets.
Once done typing the denominator, press Tab to exit the fraction.
Matrix shortcuts
While inside a matrix, array, align, or cases environment,
- Pressing Tab will insert the ”&” symbol
- Pressing Enter will insert ”\” and move to a new line
- Pressing Shift + Enter will move to the end of the next line (can be used to exit the matrix)
Conceal
This feature must be enabled in settings!
Make your equations more readable by hiding LaTeX code, instead rendering it in a pretty format.
For example, “\dot{x}^{2} + \dot{y}^{2}” will be displayed as “ẋ² + ẏ²”.
To reveal the LaTeX code, move the cursor over it.
Tabout
- Pressing Tab while the cursor is at the end of an equation will move the cursor outside the $ symbols.
- Otherwise, pressing Tab will advance the cursor to the next closing bracket: ), ], }, >, or |.
Preview inline math
When the cursor is inside inline math, a popup window showing the rendered math will be displayed.
Color & highlight matching brackets
- Matching brackets are rendered in the same color, to help with readability.
- When the cursor is adjacent to a bracket, that bracket and its pair will be highlighted.
- When the cursor is inside brackets, the enclosing brackets will be highlighted.
Visual snippets
Sometimes you want to annotate math, or cancel or cross out terms. Selecting some math with the cursor and typing
- “U” will surround it with “\underbrace”.
- “O” will surround it with “\overbrace”.
- “C” will surround it with “\cancel”.
- “K” will surround it with “\cancelto”.
- “B” will surround it with “\underset”.
Auto-enlarge brackets
When a snippet containing “\sum”, “\int” or “\frac” is triggered, any enclosing brackets will be enlarged with “\left” and “\right”.
Editor commands
- Box current equation – surround the equation the cursor is currently in with a box.
- Select current equation – select the equation the cursor is currently in.
Snippets
Snippets are formatted as follows:
{
trigger: string | RegExp,
replacement: string,
options: string,
priority?: number,
description?: string,
flags?: string,
}trigger: The text that triggers this snippet.- Triggers can also be regular expressions. See here for more info.
replacement: The text to replace thetriggerwith.- Replacements can also be JavaScript functions. See here for more info.
options: See below.priority(optional): This snippet’s priority. Snippets with higher priority are run first. Can be negative. Defaults to 0.description(optional): A description for this snippet.flags(optional): Flags for regex snippets.
Options
t: Text mode. Only run this snippet outside mathm: Math mode. Only run this snippet inside math. Shorthand for bothMandnM: Block math mode. Only run this snippet inside a$$ ... $$blockn: Inline math mode. Only run this snippet inside a$ ... $blockA: Auto. Expand this snippet as soon as the trigger is typed. If omitted, the Tab key must be pressed to expand the snippetr: Regex. Thetriggerwill be treated as a regular expressionv: Visual. Only run this snippet on a selection. The trigger should be a single characterw: Word boundary. Only run this snippet when the trigger is preceded (and followed by) a word delimiter, such as.,,, or-.c: Code mode. Only run this snippet inside a``` ... ```block
Insert tabstops for the cursor to jump to by writing “1”, etc. in the replacement.
For more details on writing snippets, including regex snippets and function snippets, see the documentation here. You can view snippets written by others and share your own snippets here.
Warning
Snippet files are interpreted as JavaScript and can execute arbitrary code. Always be careful with snippets shared from others to avoid running malicious code.
Cheatsheet
| Trigger | Replacement |
|---|---|
| mk | $ $ |
| dm | $$ $$ |
| sr | ^{2} |
| cb | ^{3} |
| rd | ^{ } |
| _ | _{ } |
| sq | \sqrt{ } |
| x/y Tab | \frac{x}{y} |
| // | \frac{ }{ } |
| te Tab | \text{ } |
| x1 | x_{1} |
| x,. | \mathbf{x} |
| x., | \mathbf{x} |
| xdot | \dot{x} |
| xhat | \hat{x} |
| xbar | \bar{x} |
| xvec | \vec{x} |
| xtilde | \tilde{x} |
| xund | \underline{x} |
| ee | e^{ } |
When running a snippet that moves the cursor inside brackets {}, press Tab to exit the brackets.
Greek letters
| Trigger | Replacement | Trigger | Replacement |
|---|---|---|---|
| @a | \alpha | eta | \eta |
| @b | \beta | mu | \mu |
| @g | \gamma | nu | \nu |
| @G | \Gamma | xi | \xi |
| @d | \delta | Xi | \Xi |
| @D | \Delta | pi | \pi |
| @e | \epsilon | Pi | \Pi |
| :e | \varepsilon | rho | \rho |
| @z | \zeta | tau | \tau |
| @t | \theta | phi | \phi |
| @T | \Theta | Phi | \Phi |
| @k | \kappa | chi | \chi |
| @l | \lambda | psi | \psi |
| @L | \Lambda | Psi | \Psi |
| @s | \sigma | ||
| @S | \Sigma | ||
| @o | \omega | ||
| ome | \omega |
For greek letters with short names (2-3 characters), just type their name, e.g. “pi” → “\pi”
[
// Math mode
{trigger: "mk", replacement: "$$0$", options: "tA"},
{trigger: "dm", replacement: "$$\n$0\n$$", options: "tAw"},
{trigger: "beg", replacement: "\\begin{$0}\n$1\n\\end{$0}", options: "mA"},
// Dashes
// {trigger: "--", replacement: "–", options: "tA"},
// {trigger: "–-", replacement: "—", options: "tA"},
// {trigger: "—-", replacement: "---", options: "tA"},
// Greek letters
{trigger: "@a", replacement: "\\alpha", options: "mA"},
{trigger: "@A", replacement: "\\alpha", options: "mA"},
{trigger: "@b", replacement: "\\beta", options: "mA"},
{trigger: "@B", replacement: "\\beta", options: "mA"},
{trigger: "@c", replacement: "\\chi", options: "mA"},
{trigger: "@C", replacement: "\\chi", options: "mA"},
{trigger: "@g", replacement: "\\gamma", options: "mA"},
{trigger: "@G", replacement: "\\Gamma", options: "mA"},
{trigger: "@d", replacement: "\\delta", options: "mA"},
{trigger: "@D", replacement: "\\Delta", options: "mA"},
{trigger: "@e", replacement: "\\epsilon", options: "mA"},
{trigger: "@E", replacement: "\\epsilon", options: "mA"},
{trigger: ":e", replacement: "\\varepsilon", options: "mA"},
{trigger: ":E", replacement: "\\varepsilon", options: "mA"},
{trigger: "@z", replacement: "\\zeta", options: "mA"},
{trigger: "@Z", replacement: "\\zeta", options: "mA"},
{trigger: "@t", replacement: "\\theta", options: "mA"},
{trigger: "@T", replacement: "\\Theta", options: "mA"},
{trigger: "@k", replacement: "\\kappa", options: "mA"},
{trigger: "@K", replacement: "\\kappa", options: "mA"},
{trigger: "@l", replacement: "\\lambda", options: "mA"},
{trigger: "@L", replacement: "\\Lambda", options: "mA"},
{trigger: "@m", replacement: "\\mu", options: "mA"},
{trigger: "@M", replacement: "\\mu", options: "mA"},
{trigger: "@r", replacement: "\\rho", options: "mA"},
{trigger: "@R", replacement: "\\rho", options: "mA"},
{trigger: "@s", replacement: "\\sigma", options: "mA"},
{trigger: "@S", replacement: "\\Sigma", options: "mA"},
{trigger: "ome", replacement: "\\omega", options: "mA"},
{trigger: "@o", replacement: "\\omega", options: "mA"},
{trigger: "@O", replacement: "\\Omega", options: "mA"},
{trigger: "@u", replacement: "\\upsilon", options: "mA"},
{trigger: "@U", replacement: "\\Upsilon", options: "mA"},
{trigger: "([^\\\\])(${GREEK}|${SYMBOL})", replacement: "[[0]]\\[[1]]", options: "rmA", description: "Add backslash before greek letters and symbols"},
// Insert space after greek letters and symbols, etc
{trigger: "\\\\(${GREEK}|${SYMBOL}|${SHORT_SYMBOL})([A-Za-z])", replacement: "\\[[0]] [[1]]", options: "rmA"},
{trigger: "\\\\(${GREEK}|${SYMBOL}) sr", replacement: "\\[[0]]^{2}", options: "rmA"},
{trigger: "\\\\(${GREEK}|${SYMBOL}) cb", replacement: "\\[[0]]^{3}", options: "rmA"},
{trigger: "\\\\(${GREEK}|${SYMBOL}) rd", replacement: "\\[[0]]^{$0}$1", options: "rmA"},
{trigger: "\\\\(${GREEK}|${SYMBOL}) hat", replacement: "\\hat{\\[[0]]}", options: "rmA"},
{trigger: "\\\\(${GREEK}|${SYMBOL}) dot", replacement: "\\dot{\\[[0]]}", options: "rmA"},
{trigger: "\\\\(${GREEK}|${SYMBOL}) bar", replacement: "\\bar{\\[[0]]}", options: "rmA"},
{trigger: "\\\\(${GREEK}|${SYMBOL}) vec", replacement: "\\vec{\\[[0]]}", options: "rmA"},
{trigger: "\\\\(${GREEK}|${SYMBOL}) tilde", replacement: "\\tilde{\\[[0]]}", options: "rmA"},
{trigger: "\\\\(${GREEK}|${SYMBOL}) und", replacement: "\\underline{\\[[0]]}", options: "rmA"},
{trigger: "\\\\(${GREEK}),\\.", replacement: "\\boldsymbol{\\[[0]]}", options: "rmA"},
{trigger: "\\\\(${GREEK})\\.,", replacement: "\\boldsymbol{\\[[0]]}", options: "rmA"},
// Operations
{trigger: "te", replacement: "\\text{$0}", options: "m"},
{trigger: "text", replacement: "\\text{$0}", options: "mA"},
{trigger: "bf", replacement: "\\mathbf{$0}", options: "mA"},
{trigger: "sr", replacement: "^{2}", options: "mA"},
{trigger: "cb", replacement: "^{3}", options: "mA"},
{trigger: "rd", replacement: "^{$0}$1", options: "mA"},
{trigger: "_", replacement: "_{$0}$1", options: "mA"},
{trigger: "sts", replacement: "_\\text{$0}", options: "rmA"},
{trigger: "sq", replacement: "\\sqrt{ $0 }$1", options: "mA"},
{trigger: "//", replacement: "\\frac{$0}{$1}$2", options: "mA"},
{trigger: "ee", replacement: "e^{ $0 }$1", options: "mA"},
{trigger: "rm", replacement: "\\mathrm{$0}$1", options: "mA"},
{trigger: "conj", replacement: "^{*}", options: "mA"},
{trigger: "trace", replacement: "\\mathrm{Tr}", options: "mA"},
{trigger: "det", replacement: "\\det", options: "mA"},
{trigger: "re", replacement: "\\mathrm{Re}", options: "mA"},
{trigger: "im", replacement: "\\mathrm{Im}", options: "mA"},
{trigger: "([a-zA-Z]),\\.", replacement: "\\mathbf{[[0]]}", options: "rmA"},
{trigger: "([a-zA-Z])\\.,", replacement: "\\mathbf{[[0]]}", options: "rmA"},
{trigger: "([A-Za-z])(\\d)", replacement: "[[0]]_{[[1]]}", options: "rmA", description: "Auto letter subscript", priority: -1},
{trigger: "([A-Za-z])_(\\d\\d)", replacement: "[[0]]_{[[1]]}", options: "rmA"},
{trigger: "\\hat{([A-Za-z])}(\\d)", replacement: "hat{[[0]]}_{[[1]]}", options: "rmA"},
{trigger: "\\\\mathbf{([A-Za-z])}(\\d)", replacement: "\\mathbf{[[0]]}_{[[1]]}", options: "rmA"},
{trigger: "\\\\vec{([A-Za-z])}(\\d)", replacement: "\\vec{[[0]]}_{[[1]]}", options: "rmA"},
{trigger: "([a-zA-Z])bar", replacement: "\\bar{[[0]]}", options: "rmA"},
{trigger: "([a-zA-Z])hat", replacement: "\\hat{[[0]]}", options: "rmA"},
{trigger: "([a-zA-Z])ddot", replacement: "\\ddot{[[0]]}", options: "rmA", priority: 3},
{trigger: "([a-zA-Z])dot", replacement: "\\dot{[[0]]}", options: "rmA", priority: 1},
{trigger: "([a-zA-Z])vec", replacement: "\\vec{[[0]]}", options: "rmA"},
{trigger: "([a-zA-Z])tilde", replacement: "\\tilde{[[0]]}", options: "rmA"},
{trigger: "([a-zA-Z])und", replacement: "\\underline{[[0]]}", options: "rmA"},
{trigger: "bar", replacement: "\\bar{$0}$1", options: "mA"},
{trigger: "hat", replacement: "\\hat{$0}$1", options: "mA"},
{trigger: "dot", replacement: "\\dot{$0}$1", options: "mA"},
{trigger: "ddot", replacement: "\\ddot{$0}$1", options: "mA", priority: 2},
{trigger: "cdot", replacement: "\\cdot", options: "mA", priority: 2},
{trigger: "vec", replacement: "\\vec{$0}$1", options: "mA"},
{trigger: "tilde", replacement: "\\tilde{$0}$1", options: "mA"},
{trigger: "und", replacement: "\\underline{$0}$1", options: "mA"},
{trigger: "([^\\\\])(arcsin|arccos|arctan|arccot|arccsc|arcsec|sin|cos|tan|cot|csc|sec)", replacement: "[[0]]\\[[1]]", options: "rmA"},
{trigger: "\\\\(arcsin|arccos|arctan|arccot|arccsc|arcsec|sin|cos|tan|cot|csc|sec)([A-Za-gi-z])", replacement: "\\[[0]] [[1]]", options: "rmA"}, // Insert space after trig funcs. Skips letter "h" to allow sinh, cosh, etc.
{trigger: "\\\\(arcsinh|arccosh|arctanh|arccoth|arcsch|arcsech|sinh|cosh|tanh|coth|csch|sech)([A-Za-z])", replacement: "\\[[0]] [[1]]", options: "rmA"}, // Insert space after trig funcs
{trigger: "\\\\(neq|geq|leq|gg|ll|sim)([0-9]+)", replacement: "\\[[0]] [[1]]", options: "rmA"}, // Insert space after inequality symbols
// Visual operations
{trigger: "U", replacement: "\\underbrace{ ${VISUAL} }_{ $0 }", options: "mA"},
{trigger: "O", replacement: "\\overbrace{ ${VISUAL} }^{ $0 }", options: "mA"},
{trigger: "B", replacement: "\\underset{ $0 }{ ${VISUAL} }", options: "mA"},
{trigger: "C", replacement: "\\cancel{ ${VISUAL} }", options: "mA"},
{trigger: "K", replacement: "\\cancelto{ $0 }{ ${VISUAL} }", options: "mA"},
{trigger: "S", replacement: "\\sqrt{ ${VISUAL} }", options: "mA"},
// Symbols
{trigger: "ooo", replacement: "\\infty", options: "mA"},
{trigger: "sum", replacement: "\\sum", options: "mA"},
{trigger: "prod", replacement: "\\prod", options: "mA"},
{trigger: "lim", replacement: "\\lim_{ ${0:n} \\to ${1:\\infty} } $2", options: "mA"},
{trigger: "([^\\\\])pm", replacement: "[[0]]\\pm", options: "rm"},
{trigger: "([^\\\\])mp", replacement: "[[0]]\\mp", options: "rm"},
{trigger: "+-", replacement: "\\pm", options: "mA"},
{trigger: "-+", replacement: "\\mp", options: "mA"},
{trigger: "...", replacement: "\\dots", options: "mA"},
{trigger: "<->", replacement: "\\leftrightarrow ", options: "mA"},
{trigger: "->", replacement: "\\to", options: "mA"},
{trigger: "!>", replacement: "\\mapsto", options: "mA"},
{trigger: "invs", replacement: "^{-1}", options: "mA"},
{trigger: "\\\\\\", replacement: "\\setminus", options: "mA"},
{trigger: "||", replacement: "\\mid", options: "mA"},
{trigger: "and", replacement: "\\cap", options: "mA"},
{trigger: "orr", replacement: "\\cup", options: "mA"},
{trigger: "inn", replacement: "\\in", options: "mA"},
{trigger: "notin", replacement: "\\not\\in", options: "mA"},
{trigger: "\\subset eq", replacement: "\\subseteq", options: "mA"},
{trigger: "eset", replacement: "\\emptyset", options: "mA"},
{trigger: "set", replacement: "\\{ $0 \\}$1", options: "mA"},
{trigger: "=>", replacement: "\\implies", options: "mA"},
{trigger: "=<", replacement: "\\impliedby", options: "mA"},
{trigger: "iff", replacement: "\\iff", options: "mA"},
{trigger: "e\\xi sts", replacement: "\\exists", options: "mA", priority: 1},
{trigger: "===", replacement: "\\equiv", options: "mA"},
{trigger: "Sq", replacement: "\\square", options: "mA"},
{trigger: "!=", replacement: "\\neq", options: "mA"},
{trigger: ">=", replacement: "\\geq", options: "mA"},
{trigger: "<=", replacement: "\\leq", options: "mA"},
{trigger: ">>", replacement: "\\gg", options: "mA"},
{trigger: "<<", replacement: "\\ll", options: "mA"},
{trigger: "~~", replacement: "\\sim", options: "mA"},
{trigger: "\\sim ~", replacement: "\\approx", options: "mA"},
{trigger: "prop", replacement: "\\propto", options: "mA"},
{trigger: "nabl", replacement: "\\nabla", options: "mA"},
{trigger: "del", replacement: "\\nabla", options: "mA"},
{trigger: "xx", replacement: "\\times", options: "mA"},
{trigger: "**", replacement: "\\cdot", options: "mA"},
{trigger: "para", replacement: "\\parallel", options: "mA"},
{trigger: "xnn", replacement: "x_{n}", options: "mA"},
{trigger: "xii", replacement: "x_{i}", options: "mA"},
{trigger: "xjj", replacement: "x_{j}", options: "mA"},
{trigger: "xp1", replacement: "x_{n+1}", options: "mA"},
{trigger: "ynn", replacement: "y_{n}", options: "mA"},
{trigger: "yii", replacement: "y_{i}", options: "mA"},
{trigger: "yjj", replacement: "y_{j}", options: "mA"},
{trigger: "mcal", replacement: "\\mathcal{$0}$1", options: "mA"},
{trigger: "mbb", replacement: "\\mathbb{$0}$1", options: "mA"},
{trigger: "ell", replacement: "\\ell", options: "mA"},
{trigger: "lll", replacement: "\\ell", options: "mA"},
{trigger: "LL", replacement: "\\mathcal{L}", options: "mA"},
{trigger: "HH", replacement: "\\mathcal{H}", options: "mA"},
{trigger: "CC", replacement: "\\mathbb{C}", options: "mA"},
{trigger: "RR", replacement: "\\mathbb{R}", options: "mA"},
{trigger: "ZZ", replacement: "\\mathbb{Z}", options: "mA"},
{trigger: "NN", replacement: "\\mathbb{N}", options: "mA"},
{trigger: "II", replacement: "\\mathbb{1}", options: "mA"},
{trigger: "\\mathbb{1}I", replacement: "\\hat{\\mathbb{1}}", options: "mA"},
{trigger: "AA", replacement: "\\mathcal{A}", options: "mA"},
{trigger: "BB", replacement: "\\mathbf{B}", options: "mA"},
{trigger: "EE", replacement: "\\mathbf{E}", options: "mA"},
// Unit vectors
{trigger: ":i", replacement: "\\mathbf{i}", options: "mA"},
{trigger: ":j", replacement: "\\mathbf{j}", options: "mA"},
{trigger: ":k", replacement: "\\mathbf{k}", options: "mA"},
{trigger: ":x", replacement: "\\hat{\\mathbf{x}}", options: "mA"},
{trigger: ":y", replacement: "\\hat{\\mathbf{y}}", options: "mA"},
{trigger: ":z", replacement: "\\hat{\\mathbf{z}}", options: "mA"},
// Derivatives
{trigger: "par", replacement: "\\frac{ \\partial ${0:y} }{ \\partial ${1:x} } $2", options: "m"},
{trigger: "pa2", replacement: "\\frac{ \\partial^{2} ${0:y} }{ \\partial ${1:x}^{2} } $2", options: "mA"},
{trigger: "pa3", replacement: "\\frac{ \\partial^{3} ${0:y} }{ \\partial ${1:x}^{3} } $2", options: "mA"},
{trigger: "pa([A-Za-z])([A-Za-z])", replacement: "\\frac{ \\partial [[0]] }{ \\partial [[1]] } ", options: "rm"},
{trigger: "pa([A-Za-z])([A-Za-z])([A-Za-z])", replacement: "\\frac{ \\partial^{2} [[0]] }{ \\partial [[1]] \\partial [[2]] } ", options: "rm"},
{trigger: "pa([A-Za-z])([A-Za-z])2", replacement: "\\frac{ \\partial^{2} [[0]] }{ \\partial [[1]]^{2} } ", options: "rmA"},
{trigger: "de([A-Za-z])([A-Za-z])", replacement: "\\frac{ d[[0]] }{ d[[1]] } ", options: "rm"},
{trigger: "de([A-Za-z])([A-Za-z])2", replacement: "\\frac{ d^{2}[[0]] }{ d[[1]]^{2} } ", options: "rmA"},
{trigger: "ddt", replacement: "\\frac{d}{dt} ", options: "mA"},
// Integrals
{trigger: "oinf", replacement: "\\int_{0}^{\\infty} $0 \\, d${1:x} $2", options: "mA"},
{trigger: "infi", replacement: "\\int_{-\\infty}^{\\infty} $0 \\, d${1:x} $2", options: "mA"},
{trigger: "dint", replacement: "\\int_{${0:0}}^{${1:\\infty}} $2 \\, d${3:x} $4", options: "mA"},
{trigger: "oint", replacement: "\\oint", options: "mA"},
{trigger: "iiint", replacement: "\\iiint", options: "mA"},
{trigger: "iint", replacement: "\\iint", options: "mA"},
{trigger: "int", replacement: "\\int $0 \\, d${1:x} $2", options: "mA"},
// Physics
{trigger: "kbt", replacement: "k_{B}T", options: "mA"},
// Quantum mechanics
{trigger: "hba", replacement: "\\hbar", options: "mA"},
{trigger: "dag", replacement: "^{\\dagger}", options: "mA"},
{trigger: "o+", replacement: "\\oplus ", options: "mA"},
{trigger: "ox", replacement: "\\otimes ", options: "mA"},
{trigger: "ot\\mathrm{Im}es", replacement: "\\otimes ", options: "mA"}, // Handle conflict with "im" snippet
{trigger: "bra", replacement: "\\bra{$0} $1", options: "mA"},
{trigger: "ket", replacement: "\\ket{$0} $1", options: "mA"},
{trigger: "brk", replacement: "\\braket{ $0 | $1 } $2", options: "mA"},
{trigger: "\\\\bra{([^|]+)\\|", replacement: "\\braket{ [[0]] | $0 ", options: "rmA", description: "Convert bra into braket"},
{trigger: "\\\\bra{(.+)}([^ ]+)>", replacement: "\\braket{ [[0]] | $0 ", options: "rmA", description: "Convert bra into braket (alternate)"},
{trigger: "outp", replacement: "\\ket{${0:\\psi}} \\bra{${0:\\psi}} $1", options: "mA"},
// Chemistry
{trigger: "pu", replacement: "\\pu{ $0 }", options: "mA"},
{trigger: "msun", replacement: "M_{\\odot}", options: "mA"},
{trigger: "solm", replacement: "M_{\\odot}", options: "mA"},
{trigger: "cee", replacement: "\\ce{ $0 }", options: "mA"},
{trigger: "iso", replacement: "{}^{${0:4}}_{${1:2}}${2:He}", options: "mA"},
{trigger: "hel4", replacement: "{}^{4}_{2}He ", options: "mA"},
{trigger: "hel3", replacement: "{}^{3}_{2}He ", options: "mA"},
// Environments
{trigger: "pmat", replacement: "\\begin{pmatrix}\n$0\n\\end{pmatrix}", options: "MA"},
{trigger: "bmat", replacement: "\\begin{bmatrix}\n$0\n\\end{bmatrix}", options: "MA"},
{trigger: "Bmat", replacement: "\\begin{Bmatrix}\n$0\n\\end{Bmatrix}", options: "MA"},
{trigger: "vmat", replacement: "\\begin{vmatrix}\n$0\n\\end{vmatrix}", options: "MA"},
{trigger: "Vmat", replacement: "\\begin{Vmatrix}\n$0\n\\end{Vmatrix}", options: "MA"},
{trigger: "matrix", replacement: "\\begin{matrix}\n$0\n\\end{matrix}", options: "MA"},
{trigger: "pmat", replacement: "\\begin{pmatrix}$0\\end{pmatrix}", options: "nA"},
{trigger: "bmat", replacement: "\\begin{bmatrix}$0\\end{bmatrix}", options: "nA"},
{trigger: "Bmat", replacement: "\\begin{Bmatrix}$0\\end{Bmatrix}", options: "nA"},
{trigger: "vmat", replacement: "\\begin{vmatrix}$0\\end{vmatrix}", options: "nA"},
{trigger: "Vmat", replacement: "\\begin{Vmatrix}$0\\end{Vmatrix}", options: "nA"},
{trigger: "matrix", replacement: "\\begin{matrix}$0\\end{matrix}", options: "nA"},
{trigger: "case", replacement: "\\begin{cases}\n$0\n\\end{cases}", options: "mA"},
{trigger: "align", replacement: "\\begin{align}\n$0\n\\end{align}", options: "mA"},
{trigger: "array", replacement: "\\begin{array}\n$0\n\\end{array}", options: "mA"},
// Brackets
{trigger: "avg", replacement: "\\langle $0 \\rangle $1", options: "mA"},
{trigger: "norm", replacement: "\\lvert $0 \\rvert $1", options: "mA", priority: 1},
{trigger: "Norm", replacement: "\\lVert $0 \\rVert $1", options: "mA", priority: 1},
{trigger: "ceil", replacement: "\\lceil $0 \\rceil $1", options: "mA"},
{trigger: "floor", replacement: "\\lfloor $0 \\rfloor $1", options: "mA"},
{trigger: "mod", replacement: "|$0|$1", options: "mA"},
{trigger: "(", replacement: "(${VISUAL})", options: "mA"},
{trigger: "[", replacement: "[${VISUAL}]", options: "mA"},
{trigger: "{", replacement: "{${VISUAL}}", options: "mA"},
{trigger: "(", replacement: "($0)$1", options: "mA"},
{trigger: "{", replacement: "{$0}$1", options: "mA"},
{trigger: "[", replacement: "[$0]$1", options: "mA"},
{trigger: "lr(", replacement: "\\left( $0 \\right) $1", options: "mA"},
{trigger: "lr|", replacement: "\\left| $0 \\right| $1", options: "mA"},
{trigger: "lr{", replacement: "\\left\\{ $0 \\right\\} $1", options: "mA"},
{trigger: "lr[", replacement: "\\left[ $0 \\right] $1", options: "mA"},
{trigger: "lra", replacement: "\\left< $0 \\right> $1", options: "mA"},
// Misc
{trigger: "tayl", replacement: "${0:f}(${1:x} + ${2:h}) = ${0:f}(${1:x}) + ${0:f}'(${1:x})${2:h} + ${0:f}''(${1:x}) \\frac{${2:h}^{2}}{2!} + \\dots$3", options: "mA"},
{trigger: /iden(\d)/, replacement: (match) => {
const n = match[1];
let arr = [];
for (let j = 0; j < n; j++) {
arr[j] = [];
for (let i = 0; i < n; i++) {
arr[j][i] = (i === j) ? 1 : 0;
}
}
let output = arr.map(el => el.join(" & ")).join(" \\\\\n");
output = `\\begin{pmatrix}\n${output}\n\\end{pmatrix}`;
return output;
}, options: "mA", description: "N x N identity matrix"},
]