Difference between revisions of "LaTeX:Symbols"
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This article will provide a short list of commonly used LaTeX symbols. | This article will provide a short list of commonly used LaTeX symbols. | ||
− | + | ==Operators== | |
+ | {| class="latextable" | ||
+ | !Symbol!!Command!!Symbol!!Command!!Symbol!!Command | ||
+ | |- | ||
+ | |<math>\pm</math>||\pm||<math>\mp</math>||\mp||<math>\times</math>||\times | ||
+ | |- | ||
+ | |<math>\div</math>||\div||<math>\cdot</math>||\cdot||<math>\ast</math>||\ast | ||
+ | |- | ||
+ | |<math>\star</math>||\star||<math>\dagger</math>||\dagger||<math>\ddagger</math>||\ddagger | ||
+ | |- | ||
+ | |<math>\amalg</math>||\amalg||<math>\cap</math>||\cap||<math>\cup</math>||\cup | ||
+ | |- | ||
+ | |<math>\uplus</math>||\uplus||<math>\sqcap</math>||\sqcap||<math>\sqcup</math>||\sqcup | ||
+ | |- | ||
+ | |<math>\vee</math>||\vee||<math>\wedge</math>||\wedge||<math>\oplus</math>||\oplus | ||
+ | |- | ||
+ | |<math>\ominus</math>||\ominus||<math>\otimes</math>||\otimes||<math>\circ</math>||\circ | ||
+ | |- | ||
+ | |<math>\bullet</math>||\bullet||<math>\diamond</math>||\diamond||<math>\lhd</math>||\lhd | ||
+ | |- | ||
+ | |<math>\rhd</math>||\rhd||<math>\unlhd</math>||\unlhd||[[Image:Unrhd.gif]]||\unrhd | ||
+ | |- | ||
+ | |<math>\oslash</math>||\oslash||<math>\odot</math>||\odot||<math>\bigcirc</math>||\bigcirc | ||
+ | |- | ||
+ | |<math>\triangleleft</math>||\triangleleft||<math>\Diamond</math>||\Diamond||<math>\bigtriangleup</math>||\bigtriangleup | ||
+ | |- | ||
+ | |<math>\bigtriangledown</math>||\bigtriangledown||<math>\Box</math>||\Box||<math>\triangleright</math>||\triangleright | ||
+ | |- | ||
+ | |<math>\setminus</math>||\setminus||<math>\wr</math>||\wr||<math>\sqrt{x}</math>||\sqrt{x} | ||
+ | |- | ||
+ | |<math>x^{\circ}</math>||x^{\circ} | ||
+ | |} | ||
==Relations== | ==Relations== |
Revision as of 09:28, 30 August 2013
LaTeX |
About - Getting Started - Diagrams - Symbols - Downloads - Basics - Math - Examples - Pictures - Layout - Commands - Packages - Help |
This article will provide a short list of commonly used LaTeX symbols.
Contents
Operators
Relations
Symbol | Command | Symbol | Command | Symbol | Command |
---|---|---|---|---|---|
\le | \ge | \neq | |||
\sim | \ll | \gg | |||
\doteq | \simeq | \subset | |||
\supset | \approx | \asymp | |||
\subseteq | \supseteq | \cong | |||
\smile | \sqsubset | \sqsupset | |||
\equiv | \frown | \sqsubseteq | |||
\sqsupseteq | \propto | \bowtie | |||
\in | \ni | \prec | |||
\succ | \vdash | \dashv | |||
\preceq | \succeq | \models | |||
\perp | \parallel | \| | |||
\mid |
Negations of many of these relations can be formed by just putting \not before the symbol, or by slipping an n between the \ and the word. Here are a few examples, plus a few other negations; it works for many of the others as well.
Symbol | Command | Symbol | Command | Symbol | Command |
---|---|---|---|---|---|
\nmid | \nleq | \ngeq | |||
\nsim | \ncong | \nparallel | |||
\not< | \not> | \not= | |||
\not\le | \not\ge | \not\sim | |||
\not\approx | \not\cong | \not\equiv | |||
\not\parallel | \nless | \ngtr | |||
\lneq | \gneq | \lnsim | |||
\lneqq | \gneqq |
To use other relations not listed here, such as =, >, and <, in LaTeX, you may just use the symbols on your keyboard.
Greek Letters
Symbol | Command | Symbol | Command | Symbol | Command | Symbol | Command |
---|---|---|---|---|---|---|---|
\alpha | \beta | \gamma | \delta | ||||
\epsilon | \varepsilon | \zeta | \eta | ||||
\theta | \vartheta | \iota | \kappa | ||||
\lambda | \mu | \nu | \xi | ||||
\pi | \varpi | \rho | \varrho | ||||
\sigma | \varsigma | \tau | \upsilon | ||||
\phi | \varphi | \chi | \psi | ||||
\omega |
Symbol | Command | Symbol | Command | Symbol | Command | Symbol | Command |
---|---|---|---|---|---|---|---|
\Gamma | \Delta | \Theta | \Lambda | ||||
\Xi | \Pi | \Sigma | \Upsilon | ||||
\Phi | \Psi | \Omega |
Headline text
Arrows
Symbol | Command | Symbol | Command |
---|---|---|---|
\gets | \to | ||
\leftarrow | \Leftarrow | ||
\rightarrow | \Rightarrow | ||
\leftrightarrow | \Leftrightarrow | ||
\mapsto | \hookleftarrow | ||
\leftharpoonup | \leftharpoondown | ||
\rightleftharpoons | \longleftarrow | ||
\Longleftarrow | \longrightarrow | ||
\Longrightarrow | \longleftrightarrow | ||
\Longleftrightarrow | \longmapsto | ||
\hookrightarrow | \rightharpoonup | ||
\rightharpoondown | \leadsto | ||
\uparrow | \Uparrow | ||
\downarrow | \Downarrow | ||
\updownarrow | \Updownarrow | ||
\nearrow | \searrow | ||
\swarrow | \nwarrow |
(For those of you who hate typing long strings of letters, \iff and \implies can be used in place of \Longleftrightarrow and \Longrightarrow respectively.)
Dots
Symbol | Command | Symbol | Command | Symbol | Command | Symbol | Command |
---|---|---|---|---|---|---|---|
\ldots 2 | \vdots | \cdots 2 | \ddots |
(The '2's after \ldots and \cdots are only present to make the distinction between the two clear.)
Accents
Symbol | Command | Symbol | Command | Symbol | Command |
---|---|---|---|---|---|
\hat{x} | \check{x} | \dot{x} | |||
\breve{x} | \acute{x} | \ddot{x} | |||
\grave{x} | \tilde{x} | \mathring{x} | |||
\bar{x} | \vec{x} |
When applying accents to i and j, you can use \imath and \jmath to keep the dots from interfering with the accents:
Symbol | Command | Symbol | Command |
---|---|---|---|
\vec{\jmath} | \tilde{\imath} |
\tilde and \hat have wide versions that allow you to accent an expression:
Symbol | Command | Symbol | Command |
---|---|---|---|
\widehat{3+x} | \widetilde{abc} |
Others
Command Symbols
Some symbols are used in commands so they need to be treated in a special way.
Symbol | Command | Symbol | Command | Symbol | Command | Symbol | Command |
---|---|---|---|---|---|---|---|
\textdollar | \& | \% | \# | ||||
\_ | \{ | \} | \backslash |
(Warning: Using $ for will result in . This is a bug as far as we know.)
European Language Symbols
Symbol | Command | Symbol | Command | Symbol | Command | Symbol | Command |
---|---|---|---|---|---|---|---|
{\oe} | {\ae} | ${\aa}$ (Error compiling LaTeX. ! Please use \mathaccent for accents in math mode.) | {\aa} | {\o} | |||
{\OE} | {\AE} | {\AA} | {\O} | ||||
{\l} | {\ss} | !` | |||||
{\L} | {\SS} | ?` |
Bracketing Symbols
In mathematics, sometimes we need to enclose expressions in brackets or braces or parentheses. Some of these work just as you'd imagine in LaTeX; type ( and ) for parentheses, [ and ] for brackets, and | and | for absolute value. However, other symbols have special commands:
Symbol | Command | Symbol | Command | Symbol | Command |
---|---|---|---|---|---|
\{ | \} | \| | |||
\backslash | \lfloor | \rfloor | |||
\lceil | \rceil | \langle | |||
\rangle |
You might notice that if you use any of these to typeset an expression that is vertically large, like
- (\frac{a}{x} )^2
the parentheses don't come out the right size:
If we put \left and \right before the relevant parentheses, we get a prettier expression:
- \left(\frac{a}{x} \right)^2
gives
\left and \right can also be used to resize the following symbols:
Symbol | Command | Symbol | Command | Symbol | Command |
---|---|---|---|---|---|
\uparrow | \downarrow | \updownarrow | |||
\Uparrow | \Downarrow | \Updownarrow |
Multi-Size Symbols
Some symbols render differently in inline math mode and in display mode. Display mode occurs when you use \[...\] or $$...$$, or environments like \begin{equation}...\end{equation}, \begin{align}...\end{align}. Read more in the commands section of the guide about how symbols which take arguments above and below the symbols, such as a summation symbol, behave in the two modes.
In each of the following, the two images show the symbol in display mode, then in inline mode.
Symbol | Command | Symbol | Command | Symbol | Command |
---|---|---|---|---|---|
\sum | \int | \oint | |||
\prod | \coprod | \bigcap | |||
\bigcup | \bigsqcup | \bigvee | |||
\bigwedge | \bigodot | \bigotimes | |||
\bigoplus | \biguplus |
Examples
- x^y is the same as x^{y}, producing .
- x_y is the same as x_{y}, producing .
- However, x^10 is not the same as x^{10}. The former produces instead of .