# Keyboard Shortcuts import { Children, useEffect } from 'react'; export function onDisplayChange(e) { const useGlyphs = e.target.value === 'glyphs'; // We currently combine the display of glyphs with the "apple" class // We could have them separated... document.body.classList.toggle('apple', useGlyphs); document.body.classList.toggle('glyphs', useGlyphs); } export function Keybinding({value, appleValue, children}) { const asKeylabel = (s, cls) => { const keybindings = s.split(/ /); return Children.map(keybindings, (keybinding => { const keys = keybinding.split('+'); let labels = keys.map(key => {key}); // Insert a "+" between each key labels = labels.reduce((acc, curr) => acc === null ? [curr] : [...acc, '+', curr], null); return

{Children.map(labels, _ => _)}

})); } // Substitute a text label for the glyphs const noGlyphs = (s) => { return s.replace(/⌘|⌃|⇧|⌥|⤒|⤓|⇞|⇟|⇥|⌫|⌦|⏎|⌤|⇥/g, (glyph) => { const noGlyph = { '⌘': 'Ctrl', '⌃': 'Ctrl', '⇧': 'Shift', '⌥': 'Alt', '⤒': "Home", '⤓': 'End', "⇞": 'Page Up', '⇟': "Page Down", '⌫': 'Backspace', '⌦': 'Del', '⏎': 'Return', '⌤': 'Enter', '⇥': 'Tab' }[glyph]; return noGlyph ?? glyph; }); } return

{children}

{asKeylabel(noGlyphs(value), 'if-not-glyphs')} {asKeylabel(value, 'if-glyphs')} {appleValue && asKeylabel(appleValue, 'if-apple')}

} export function Shortcut({value, children}) { return

{`$$${value}$$`}

{children}

} export default function ({children}) { useEffect(() => { const platform = navigator['userAgentData']?.platform ?? navigator.platform; const isApple = /^mac/i.test(platform) || /iphone|ipod|ipad/i.test(navigator.userAgent); // The body class gets cleared when the page is reloaded, so we need to // set it again after a short delay. if (isApple) setTimeout(() => document.body.classList.add('apple', 'glyphs'), 16); const glyphsRadio = document.getElementById('glyphs-radio'); const textRadio = document.getElementById('text-radio'); glyphsRadio.checked = isApple; textRadio.checked = !isApple; // Restore the body class when the page is reloaded return () => document.body.classList.remove('apple', 'glyphs'); }, []); return <>{children}; } ## Keybindings Commands to edit and modify a formula can be invoked by pressing some key combinations. :::info[Note] The keybindings below are applicable to a US QWERTY keyboard. Some of the keybindings may not be available with other keyboard layouts. ::: Read more about definining your own **keybindings** and **shortcuts**.

Display shortcuts for:

macOS, iPadOS, iOS Windows, Android, ChromeOS, Linux

⇧Shift

⌃Control

⌥Option

⌘Command

⤒Home

⤓End

⇞Page Up

⇟Page Down

⌫Backspace

⌦Del

⏎Return

⌤Enter

⇥Tab

### Editing

move backward move forward move up move down extend selection backward extend selection forward extend selection upward extend selection downward move to next placeholder move to previous placeholder delete backward delete forward move to previous word move to next word extend selection to previous word extend selection to next word move to group start move to group end extend selection to group start extend selection to group end move after parent move before parent move to mathfield start extend selection to mathfield start move to mathfield end extend selection to mathfield end move to opposite move to superscript/upper move to subscript/lower finish reject accept suggestion complete select all undo redo scroll into view toggle keystroke caption toggle virtual keyboard show context menu apply text mode toggle math/text mode enter/exit LaTeX mode enter LaTeX mode speak parent speak all

### Math Symbols

$$\frac{}{}$$ $$\sqrt{}$$ $$\sqrt{}$$ $$\sqrt[n]{}$$ $$\pi$$ $$\emptyset$$ $$\differentialD$$ $$\varnothing$$ $$\partial$$ $$\prod_{i=}^{}$$ $$\infty$$ $$($$ $$)$$ $$\|$$ $$\backslash$$ $$\~$$

### Matrix Editing

insert square bracket matrix insert braces matrix insert row insert column

## Inline Shortcuts Some sequence of characters are automatically translated to symbols. For example, typing `P` followed by `I` will result in "π". Many of the [ASCIIMath](http://asciimath.org/) symbols are supported. If the conversion was not desired, for example you actually meant "pi", type ctrl/⌘+Z to undo it. ### Letter-Like Symbols

∞

infty

forall

exists

!exists

!EE

diamond

square

_|_

nabla

grad

del

∆

∂

aleph

### Functions

arcsin arccos arctan sin sinh cos cosh tan tanh sec csc cot log ln exp lim det mod max min erf erfc bessel mean median fft lcm gcd randomReal randomInteger Re Im

### Relational Operators

!= \>= \<= \<\< \>\>

≈

?= := :: -= ~= lt lt= gt gt=

-lt

-\<

-\<= -\>= prop

### Other Operators

* \*\* *** && xin in !in xx +- ÷ (-) (+) (/)

(x)

(-) @ |\>\< \>\<| |\>\<|

divide

^^ ^^^ vv vvv nn nnn uu uuu setminus sub sup sube supe and or not

### Delimiters

\|\_\_ __| \|\~ ~\| || \{ \} (: :)

### Units

mm cm km kg

### Arrows

iff \>-\> -\>\> \>-\>\> -\> -\>... |-\> --\> \<-- => ==> \<=\> \<-\> uarr darr rarr rArr larr lArr harr hArr |-- |==

### Greek Letters

alpha beta gamma Gamma delta Delta epsilon varepsilon zeta eta theta vartheta Theta iota kappa lambda Lambda

nu xi Xi pi Pi rho sigma Sigma tau upsilon phi varphi Phi chi psi Psi Ω Omega

### Miscellaneous

\% '' ∑ sum int prod sqrt neg liminf limsup argmin argmax ... +... -... :.