# $\TeX$

Typesetting with $\TeX$. This is a list of $\TeX$ functions supported by Blot. It is sorted into logical groups.

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    Blot can typeset $$\TeX$$. Use two dollar signs () to delimit the $$\TeX$$. You can use $$\TeX$$ in the middle of a sentence, or on its own line: $$f(x) = 2x^2 + 2/3$$  ## Accents  $a’$ a’ $\overrightarrow{AB}$ \overrightarrow{AB} $\ddot{a}$ \ddot{a} $\overleftarrow{AB}$ \overleftarrow{AB} $a’’$ a’′ $\underrightarrow{AB}$ \underrightarrow{AB} $\grave{a}$ \grave{a} $\underleftarrow{AB}$ \underleftarrow{AB} $a^{\prime}$ a^{\prime} $\overbrace{AB}$ \overbrace{AB} $\hat{\theta}$ \hat{\theta} $\overleftrightarrow{AB}$ \overleftrightarrow{AB} $\acute{a}$ \acute{a} $\underbrace{AB}$ \underbrace{AB} $\widehat{ac}$ \widehat{ac} $\underleftrightarrow{AB}$ \underleftrightarrow{AB} $\bar{y}$ \bar{y} $\overlinesegment{AB}$ \overlinesegment{AB} $\tilde{a}$ \tilde{a} $\overgroup{AB}$ \overgroup{AB} $\breve{a}$ \breve{a} $\underlinesegment{AB}$ \underlinesegment{AB} $\widetilde{ac}$ \widetilde{ac} $\undergroup{AB}$ \undergroup{AB} $\check{a}$ \check{a} $\overrightharpoon{ac}$ \overrightharpoon{ac} $\vec{F}$ \vec{F} $\overleftharpoon{ac}$ \overleftharpoon{ac} $\dot{a}$ \dot{a} $\utilde{AB}$ \utilde{AB} $\overline{AB}$ \overline{AB} $\Overrightarrow{AB}$ \Overrightarrow{AB} $\underline{AB}$ \underline{AB} See also letters. #### Accent functions inside \text{…}  $\text{'{a}}$ '{a} $\text{\~{a}}$ \~{a} $\text{\.{a}}$ \.{a} $\text{\{a}}$ \{a} $\text{\={a}}$ \={a} $\text{"{a}}$ "{a} $\text{\^{a}}$ \^{a} $\text{\u{a}}$ \u{a} $\text{\r{a}}$ \r{a} $\text{\H{a}}$ \H{a} $\text{\v{a}}$ \v{a} ## Delimiters  $(\,)$ ( ) $\lgroup\:\rgroup$ \lgroup\rgroup $\lceil\:\rceil$ \lceil\rceil $\uparrow$ \uparrow $[\:]$ [ ] $\lbrack\:\rbrack$ \lbrack\rbrack ⌊⌋ \lfloor\rfloor $\downarrow$ \downarrow $\{\,\}$ \{ \} $\lbrace\:\rbrace$ \lbrace\rbrace $\ulcorner \urcorner$ \ulcorner\urcorner $\updownarrow$ \updownarrow $\langle\:\rangle$ \langle\rangle $\lt\:\gt$ \lt\gt $\llcorner \lrcorner$ \llcorner\lrcorner $\Uparrow$ \Uparrow $|$ | $\vert$ \vert $\backslash$ \backslash $\Downarrow$ \Downarrow $\|$ \| $\Vert$ \Vert $\lmoustache\:\rmoustache$ \lmoustache\rmoustache $\Updownarrow$ \Updownarrow $\lvert\;\rvert$ \lvert\rvert $\lVert\;\rVert$ \lVert\rVert \left. \right. #### Delimiter Sizing  $\left(\LARGE{AB}\right)$ \left( \LARGE{AB} \right) \left \big \bigl \bigr \middle \Big \Bigl \Bigr $( \big( \Big( \bigg( \Bigg($ ( \big( \Big( \bigg( \Bigg( \right \bigg \biggl \biggr \Bigg \Biggl \Biggr ## Environments  $\begin{matrix} a&b\\c&d \end{matrix}$ \begin{matrix} a & b \\ c & d \end{matrix} $\begin{array}{c|c} a&b\\c&d \end{array}$ \begin{array}{c|c} a & b \\ c & d \end{array} $\begin{pmatrix} a & b\\c & d \end{pmatrix}$ \begin{pmatrix} a & b \\ c & d \end{pmatrix} $\begin{bmatrix} a & b\\c & d \end{bmatrix}$ \begin{bmatrix} a & b \\ c & d \end{bmatrix} $\begin{vmatrix} a & b\\c & d \end{vmatrix}$ \begin{vmatrix} a & b \\ c & d \end{vmatrix} $\begin{Vmatrix} a & b\\c & d \end{Vmatrix}$ \begin{Vmatrix} a & b \\ c & d \end{Vmatrix} $\begin{Bmatrix} a & b\\c & d \end{Bmatrix}$ \begin{Bmatrix} a & b \\ c & d \end{Bmatrix} $\def\arraystretch{1.5}\begin{array}{c:c:c} a & b & c\\\hline d & e & f\\\hdashline g & h & i \end{array}$ \def\arraystretch{1.5} \begin{array}{c:c:c} a & b & c \\ \hline d & e & f \\ \hdashline g & h & i \end{array} \begin{aligned} a&=b+c\\d+e&=f \end{aligned} \begin{aligned} a&=b+c \\ d+e&=f \end{aligned} \begin{alignedat}{2}10&x+&3&y=2\\3&x+&13&y=4\end{alignedat} \begin{alignedat}{2} 10&x+ &3&y = 2 \\ 3&x+&13&y = 4 \end{alignedat} $\begin{gathered} a=b\\e=b+c \end{gathered}$ \begin{gathered} a=b \\ e=b+c \end{gathered} $x = \begin{cases} a &\text{if } b\\c &\text{if } d \end{cases}$ x = \begin{cases} a &\text{if } b \\ c &\text{if } d \end{cases} There is also support for {darray} and {dcases}. Acceptable line separators include: \\, \cr, and \\[distance]. Distance can be written with any of the units. The {array} environment does not yet support \hline. ## Greek Letters  Γ \Gamma Δ \Delta Θ \Theta Λ \Lambda Ξ \Xi Π \Pi Σ \Sigma Υ \Upsilon Φ \Phi Ψ \Psi Ω \Omega α \alpha β \beta γ \gamma δ \delta ϵ \epsilon ζ \zeta η \eta θ \theta ι \iota κ \kappa λ \lambda μ \mu ν \nu ξ \xi o \omicron π \pi ρ \rho σ \sigma τ \tau υ \upsilon ϕ \phi χ \chi ψ \psi ω \omega ε \varepsilon ϰ \varkappa ϑ \vartheta ϖ \varpi ϱ \varrho ς \varsigma φ \varphi ϝ \digamma Direct Input: Γ Δ Θ Λ Ξ Π Σ Υ Φ Ψ Ωα β γ δ ϵ ζ η θ ι κ λ μ ν ξ o π ρ σ τ υ ϕ χ ψ ω ε ϑ ϖ ϱ ς φ #### Other Letters  $\imath$ \imath $\jmath$ \jmath ℵ \aleph ℶ \beth ℷ \gimel ℸ \daleth ð \eth Ⅎ \Finv ⅁ \Game ℓ \ell ℏ \hbar ℏ \hslash ℑ \Im ℜ \Re ℘ \wp ∂ \partial ∇ \nabla $\Bbbk$ \Bbbk Direct Input: ℂ ℍ ℕ ℙ ℚ ℝ ℤ ∂ ð ∇ ℑ ℓ ℘ ℜ Ⅎ ℵ ℶ ℷ ℸ ⅁ ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖÙÚÛÜÝÞàáâãäåçèéêëìíîïðñòóôöùúûüýþÿ #### Letters inside \text{} \text{…} will accept the functions: \ae, \AE, \oe, \OE, \o, \O, \ss, \i, \j. \text{…} also accepts Unicode characters from: Script Unicode Range Script Unicode Range Latin-1 0080 — 00FF Sinhala 0D80 — 0DFF Cyrillic 0400 — 04FF Thai 0E00 — 0E7F Devanagari 0900 — 097F Lao 0E80 — 0EFF Bengali 0980 — 09FF Tibetan 0F00 — 0FFF Gurmukhi 0A00 — 0A7F CJK symbols and punctuation 3000 — 303F Gujarati 0A80 — 0AFF Hiragana 3040 — 309F Oriya 0B00 — 0B7F Katakana 30A0 — 30FF Tamil 0B80 — 0BFF CJK ideograms 4E00 — 9FAF Telugu 0C00 — 0C7F Hangul AC00 — D7AF Kannada 0C80 — 0CFF Full width punctuation FF00 — FF60 Malayalam 0D00 — 0D7F ## Annotation  $\cancel{5}$ \cancel{5} $\overbrace{a+b+c}^{\text{note}}$ \overbrace{a+b+c}^{\text{note}} $\bcancel{5}$ \bcancel{5} $\underbrace{a+b+c}_{\text{note}}$ \underbrace{a+b+c}_{\text{note}} $\xcancel{ABC}$ \xcancel{ABC} $\boxed{\pi = \frac c d}$ \boxed{\pi=\frac c d} $\sout{abc}$ \sout{abc} $\not =$ \not = ## Overlap  ${=}\mathllap{/\,}$ {=}\mathllap{/\,} $\left(x^{\smash{2}}\right)$ \left(x^{\smash{2}}\right) $\mathrlap{\,/}{=}$ \mathrlap{\,/}{=} $\sqrt{\smash[b]{y}}$ \sqrt{\smash[b]{y}} $\displaystyle \sum_{\mathclap{1\le i\le j\le n}} x_{ij}$ \sum_{\mathclap{1\le i\le j\le n}} x_{ij} There is also support for \llap, \rlap, and \clap, but they will take only text, not math, as arguments. ## Spacing Function Produces Function Produces \! – ³∕₁₈ em space \kern{distance} space, width = distance \, ³∕₁₈ em space \mkern{distance} space, width = distance \thinspace ³∕₁₈ em space \skip{distance} space, width = distance \: ⁴∕₁₈ em space \mskip{distance} space, width = distance \medspace ⁴∕₁₈ em space \hspace{distance} space, width = distance \; ⁵∕₁₈ em space \hspace*{distance} space, width = distance \thickspace ⁵∕₁₈ em space \phantom{content} space the width and height of content \enspace ½ em space \hphantom{content} space the width of content \quad 1 em space \vphantom{content} a strut the height of content \qquad 2 em space ~ non-breaking space \space non-breaking space \space non-breaking space {distance} will accept any of the units. \mkern and \mskip will not work in text mode and both will write a console warning for any unit except mu. See also environments #### Vertical Layout  $x_n$ x_n $\stackrel{!}{=}$ \stackrel{!}{=} $a \atop b$ a \atop b $e^x$ e^x $\overset{!}{=}$ \overset{!}{=} $a\raisebox{0.25em}{b}c$ a\raisebox{0.25em}{b}c $_u^o$ _u^o $\underset{!}{=}$ \underset{!}{=} See also relations and binary operators ## Logic and Set Theory  ∀ \forall ∁ \complement ∴ \therefore ¬ \neg or \lnot ∃ \exists ⊂ \subset ∵ \because ∅ \emptyset or \varnothing ∄ \nexists ⊃ \supset ↦ \mapsto ∈ \in ∣ \mid → \to ⟹ \implies ∉ \notin ∧ \land ← \gets ⟸ \impliedby ∋ \ni ∨ \lor ↔ \leftrightarrow ⟺ \iff $\notni$ \notni Direct Input: ∀ ∴ ∁ ∵ ∃ ∣ ∈ ∉ ∋ ⊂ ⊃ ∧ ∨ ↦ → ← ↔ ℂ ℍ ℕ ℙ ℚ ℝ ℤ ## Big Operators  ∑ \sum ∏ \prod ⋁ \bigvee ⨂ \bigotimes ∫ \int ∐ \coprod ⋀ \bigwedge ⨁ \bigoplus ∬ \iint ∫ \intop ⋂ \bigcap ⨀ \bigodot ∭ \iiint ∫ \smallint ⋃ \bigcup ⨄ \biguplus ∮ \oint ⨆ \bigsqcup Direct Input: ∫ ∬ ∭ ∮ ∏ ∐ ∑ ⋀ ⋁ ⋂ ⋃ ⨀ ⨁ ⨂ ⨄ ⨆ ## Binary Operators  + + ⋅ \cdot ⋗ \gtrdot − - ⋅ \cdotp ⊺ \intercal / / $\centerdot$ \centerdot ∧ \land ∗ * ∘ \circ ⋋ \leftthreetimes ⨿ \amalg ⊛ \circledast . \ldotp & \And ⊚ \circledcirc ∨ \lor ∗ \ast ⊝ \circleddash ⋖ \lessdot ⊼ \barwedge ⋓ \Cup ⊲ \lhd ◯ \bigcirc ∪ \cup ⋉ \ltimes ⊡ \boxdot ⋎ \curlyvee ⊳ \rhd ⋏ \curlywedge ∓ \mp ⊟ \boxminus ÷ \div ⊙ \odot ⊞ \boxplus ⋇ \divideontimes ⊖ \ominus ⊠ \boxtimes ∔ \dotplus ⊕ \oplus ∙ \bullet ⩞ \doublebarwedge ⊗ \otimes ⋒ \Cap ⋒ \doublecap ⊘ \oslash ∩ \cap ⋓ \doublecup ± \pm ⋌ \rightthreetimes ⋊ \rtimes ∖ \setminus $\smallsetminus$ \smallsetminus ⊓ \sqcap ⊔ \sqcup × \times ⊴ \unlhd ⊵ \unrhd ⊎ \uplus ∨ \vee ⊻ \veebar ∧ \wedge ≀ \wr $x \pmod a$ x \pmod a $x \pod a$ x \pod a $x\mod a$ x\mod a $\bmod$ \bmod Direct Input: + - / * ⋅ ± × ÷ ∓ ∔ ∧ ∨ ∩ ∪ ≀ ⊎ ⊓ ⊔ ⊕ ⊖ ⊗ ⊘ ⊙ ⊚ ⊛ ⊝ ⊞ ⊟ ⊠ ⊡ ⊺ ⊻ ⊼ ⋇ ⋉ ⋊ ⋋ ⋌ ⋎ ⋏ ⋒ ⋓ ⩞ ## Binomial Coefficients  $\binom{n}{k}$ \binom{n}{k} $\dbinom{n}{k}$ \dbinom{n}{k} $\left\langle n \atop k \right\rangle$ \left\langlen \atop k\right\rangle ${n}\choose{k}$ {n}\choose{k} $\tbinom{n}{k}$ \tbinom{n}{k} ## Fractions  $\frac{a}{b}$ \frac{a}{b} $\dfrac{a}{b}$ \dfrac{a}{b} ${a}/{b}$ {a}/{b} ${a}\over{b}$ {a}\over{b} $\tfrac{a}{b}$ \tfrac{a}{b} ## Math Operators  arcsin \arcsin cotg \cotg ln \ln det \det arccos \arccos coth \coth log \log gcd \gcd arctan \arctan csc \csc sec \sec inf \inf arctg \arctg ctg \ctg sin \sin lim \lim arcctg \arcctg cth \cth sinh \sinh lim inf \liminf arg \arg deg \deg sh \sh lim sup \limsup ch \ch dim \dim tan \tan max \max cos \cos exp \exp tanh \tanh min \min cosec \cosec hom \hom tg \tg Pr \Pr cosh \cosh ker \ker th \th sup \sup cot \cot lg \lg asin x \operatorname{asin} x Functions on the right side of this table can take \limits. ## Sqrt  $\sqrt{x}$ \sqrt{x} $\sqrt[3]{x}$ \sqrt[3]{x} ## Relations  $\stackrel{!}{=}$ \stackrel{!}{=} = = ⋟ \curlyeqsucc ⪆ \gtrapprox < < ⊣ \dashv ⋛ \gtreqless > > $\dblcolon$ \dblcolon ⪌ \gtreqqless : : ≐ \doteq ≷ \gtrless ≈ \approx ≑ \Doteq ≳ \gtrsim ≊ \approxeq ≑ \doteqdot ∈ \in ≍ \asymp ≖ \eqcirc ⋈ \Join ∍ \backepsilon $\eqcolon$ \eqcolon ≤ \le ∽ \backsim $\Eqcolon$ \Eqcolon ≤ \leq ⋍ \backsimeq $\eqqcolon$ \eqqcolon ≦ \leqq ≬ \between $\Eqqcolon$ \Eqqcolon ⩽ \leqslant ⋈ \bowtie ≂ \eqsim ⪅ \lessapprox ≏ \bumpeq ⪖ \eqslantgtr ⋚ \lesseqgtr ≎ \Bumpeq ⪕ \eqslantless ⪋ \lesseqqgtr ≗ \circeq ≡ \equiv ≶ \lessgtr $\colonapprox$ \colonapprox ≒ \fallingdotseq ≲ \lesssim $\Colonapprox$ \Colonapprox ⌢ \frown ≪ \ll $\coloneq$ \coloneq ≥ \ge ⋘ \lll $\Coloneq$ \Coloneq ≥ \geq ⋘ \llless $\coloneqq$ \coloneqq ≧ \geqq < \lt $\Coloneqq$ \Coloneqq ⩾ \geqslant ∣ \mid $\colonsim$ \colonsim ≫ \gg ⊨ \models $\Colonsim$ \Colonsim ⋙ \ggg ⊸ \multimap ≅ \cong ⋙ \gggtr ∋ \owns ⋞ \curlyeqprec > \gt ∥ \parallel ⊥ \perp ⪸ \succapprox ⋔ \pitchfork ≽ \succcurlyeq ≺ \prec ⪰ \succeq ⪷ \precapprox ≿ \succsim ≼ \preccurlyeq ⋑ \Supset ⪯ \preceq ⊃ \supset ≾ \precsim ⊇ \supseteq ∝ \propto ⫆ \supseteqq ≓ \risingdotseq ≈ \thickapprox ∣ \shortmid ∼ \thicksim ∥ \shortparallel ⊴ \trianglelefteq ∼ \sim ≜ \triangleq ≃ \simeq ⊵ \trianglerighteq $\smallfrown$ \smallfrown ∝ \varpropto $\smallsmile$ \smallsmile △ \vartriangle ⌣ \smile ⊲ \vartriangleleft ⊏ \sqsubset ⊳ \vartriangleright ⊑ \sqsubseteq $\vcentcolon$ \vcentcolon ⊐ \sqsupset ⊢ \vdash ⊒ \sqsupseteq ⊨ \vDash ⋐ \Subset ⊩ \Vdash ⊂ \subset ⊪ \Vvdash ⊆ \subseteq ⫅ \subseteqq ≻ \succ Direct Input: = < > : ∈ ∋ ∝ ∼ ∽ ≂ ≃ ≅ ≈ ≊ ≍ ≎ ≏ ≐ ≑ ≒ ≓ ≖ ≗ ≜ ≡ ≤ ≥ ≦ ≧ ≫ ≬ ≳ ≷ ≺ ≻ ≼ ≽ ≾ ≿ ⊂ ⊃ ⊆ ⊇ ⊏ ⊐ ⊑ ⊒ ⊢ ⊣ ⊩ ⊪ ⊸ ⋈ ⋍ ⋐ ⋑ ⋔ ⋙ ⋛ ⋞ ⋟ ⌢ ⌣ ⩾ ⪆ ⪌ ⪕ ⪖ ⪯ ⪰ ⪷ ⪸ ⫅ ⫆ #### Negated Relations  ⪊ \gnapprox  \ngeqslant ⊈ \nsubseteq ⪈ \gneq ≯ \ngtr  \nsubseteqq ≩ \gneqq ≰ \nleq ⊁ \nsucc ⋧ \gnsim  \nleqq ⋡ \nsucceq  \gvertneqq  \nleqslant ⊉ \nsupseteq ⪉ \lnapprox ≮ \nless  \nsupseteqq ⪇ \lneq ∤ \nmid ⋪ \ntriangleleft ≨ \lneqq ∉ \notin ⋬ \ntrianglelefteq ⋦ \lnsim $\notni$ \notni ⋫ \ntriangleright  \lvertneqq ∦ \nparallel ⋭ \ntrianglerighteq ≆ \ncong ⊀ \nprec ⊬ \nvdash ≠ \ne ⋠ \npreceq ⊭ \nvDash ≠ \neq  \nshortmid ⊯ \nVDash ≱ \ngeq  \nshortparallel ⊮ \nVdash  \ngeqq ≁ \nsim ⪹ \precnapprox ⪵ \precneqq ⋨ \precnsim ⊊ \subsetneq ⫋ \subsetneqq ⪺ \succnapprox ⪶ \succneqq ⋩ \succnsim ⊋ \supsetneq ⫌ \supsetneqq  \varsubsetneq  \varsubsetneqq  \varsupsetneq  \varsupsetneqq $\not =$ \not = Direct Input: ∉ ∤ ∦ ≁ ≆ ≠ ≨ ≩ ≮ ≯ ≰ ≱ ⊀ ⊁ ⊈ ⊉ ⊊ ⊋ ⊬ ⊭ ⊮ ⊯ ⋠ ⋡ ⋦ ⋧ ⋨ ⋩ ⋬ ⋭ ⪇ ⪈ ⪉ ⪊ ⪵ ⪶ ⪹ ⪺ ⫋ ⫌ ## Arrows  ↺ \circlearrowleft ⇐ \Leftarrow ↻ \circlearrowright ↢ \leftarrowtail ↶ \curvearrowleft ↽ \leftharpoondown ↷ \curvearrowright ↼ \leftharpoonup ⇠ \dashleftarrow ⇇ \leftleftarrows ⇢ \dashrightarrow ↔ \leftrightarrow ↓ \downarrow ⇔ \Leftrightarrow ⇓ \Downarrow ⇆ \leftrightarrows ⇊ \downdownarrows ⇋ \leftrightharpoons ⇃ \downharpoonleft ↭ \leftrightsquigarrow ⇂ \downharpoonright ⇚ \Lleftarrow ← \gets ⟵ \longleftarrow ↩ \hookleftarrow ⟸ \Longleftarrow ↪ \hookrightarrow ⟷ \longleftrightarrow ⟺ \iff ⟺ \Longleftrightarrow ⟸ \impliedby ⟼ \longmapsto ⟹ \implies ⟶ \longrightarrow ⇝ \leadsto ⟹ \Longrightarrow ← \leftarrow ↫ \looparrowleft ↬ \looparrowright ⇉ \rightrightarrows ↰ \Lsh ⇝ \rightsquigarrow ↦ \mapsto ⇛ \Rrightarrow ↗ \nearrow ↱ \Rsh ↚ \nleftarrow ↘ \searrow ⇍ \nLeftarrow ↙ \swarrow ↮ \nleftrightarrow → \to ⇎ \nLeftrightarrow ↞ \twoheadleftarrow ↛ \nrightarrow ↠ \twoheadrightarrow ⇏ \nRightarrow ↑ \uparrow ↖ \nwarrow ⇑ \Uparrow ↾ \restriction ↕ \updownarrow → \rightarrow ⇕ \Updownarrow ⇒ \Rightarrow ↿ \upharpoonleft ↣ \rightarrowtail ↾ \upharpoonright ⇁ \rightharpoondown ⇈ \upuparrows ⇀ \rightharpoonup ⇄ \rightleftarrows ⇌ \rightleftharpoons Direct Input: = < > : ∈ ∋ ∝ ∼ ∽ ≂ ≃ ≅ ≈ ≊ ≍ ≎ ≏ ≐ ≑ ≒ ≓ ≖ ≗ ≜ ≡ ≤ ≥ ≦ ≧ ≫ ≬ ≳ ≷ ≺ ≻ ≼ ≽ ≾ ≿ ⊂ ⊃ ⊆ ⊇ ⊏ ⊐ ⊑ ⊒ ⊢ ⊣ ⊩ ⊪ ⊸ ⋈ ⋍ ⋐ ⋑ ⋔ ⋙ ⋛ ⋞ ⋟ ⌢ ⌣ ⩾ ⪆ ⪌ ⪕ ⪖ ⪯ ⪰ ⪷ ⪸ ⫅ ⫆ #### Extensible Arrows  $\xrightarrow{over}$ \xrightarrow{over} $\xRightarrow{abc}$ \xRightarrow{abc} $\xrightarrow[under]{over}$ \xrightarrow[under]{over} $\xmapsto{abc}$ \xmapsto{abc} $\xleftarrow{abc}$ \xleftarrow{abc} $\xLeftarrow{abc}$ \xLeftarrow{abc} $\xleftrightarrow{abc}$ \xleftrightarrow{abc} $\xLeftrightarrow{abc}$ \xLeftrightarrow{abc} $\xhookleftarrow{abc}$ \xhookleftarrow{abc} $\xhookrightarrow{abc}$ \xhookrightarrow{abc} $\xtwoheadrightarrow{abc}$ \xtwoheadrightarrow{abc} $\xlongequal{abc}$ \xlongequal{abc} $\xtwoheadleftarrow{abc}$ \xtwoheadleftarrow{abc} $\xtofrom{abc}$ \xtofrom{abc} $\xrightharpoonup{abc}$ \xrightharpoonup{abc} $\xrightharpoondown{abc}$ \xrightharpoondown{abc} $\xleftharpoonup{abc}$ \xleftharpoonup{abc} $\xleftharpoondown{abc}$ \xleftharpoondown{abc} $\xrightleftharpoons{abc}$ \xrightleftharpoons{abc} $\xleftrightharpoons{abc}$ \xleftrightharpoons{abc} Extensible arrows all can take an optional argument in the same manner as \xrightarrow[under]{over}. ## Class Assignment  \mathbin \mathclose \mathinner \mathop \mathopen \mathord \mathpunct \mathrel ## Color The color function behaves like a switch.  $\color{blue} F=ma$ \color{blue} F=ma $\color{#fc625d} F=ma$ \color{#fc625d} F=ma Other color functions always expect the content to be a function argument.  $\textcolor{forestgreen}{F=ma}$ \textcolor{forestgreen}{F=ma} $\textcolor{#fc625d}{F=ma}$ \textcolor{#fc625d}{F=ma} $\colorbox{gold}{A}$ \colorbox{gold}{A} $\fcolorbox{black}{gold}{A}$ \fcolorbox{black}{gold}{A} For color definition, color functions will accept the standard HTML predefined color names. They will also accept an RGB argument in CSS hexa­decimal style. ## Font  AB \mathrm{AB} AB \mathit{AB} AB \frak{AB} AB \textrm{AB} AB \textit{AB} AB \mathfrak{AB} AB \rm{AB} AB \it{AB} AB \mathscr{AB} AB \textnormal{AB} AB \Bbb{AB} AB \mathcal{AB} AB \text{AB} AB \mathbb{AB} AB \mathbf{AB} AB \mathtt{AB} AB \textbf{AB} AB \texttt{AB} AB \bf{AB} AB \tt{AB} AB \bold{AB} AB \textsf{AB} AB \boldsymbol{AB} AB \sf{AB} AB \bm{AB} AB \mathsf{AB} One can stack font family, font weight, and font shape by using the \textXX versions of the font functions. So \textsf{\textbf{H}} will produce $\textsf{\textbf{H}}$. The other versions so not stack, e.g., \mathsf{\mathbf{H}} will produce $\mathsf{\mathbf{H}}$. #### Size  $\Huge{AB}$ \Huge{AB} $\normalsize{AB}$ \normalsize{AB} $\huge{AB}$ \huge{AB} $\small{AB}$ \small{AB} $\LARGE{AB}$ \LARGE{AB} $\footnotesize{AB}$ \footnotesize{AB} $\Large{AB}$ \Large{AB} $\scriptsize{AB}$ \scriptsize{AB} $\large{AB}$ \large{AB} $\tiny{AB}$ \tiny{AB} #### Style  $\displaystyle\sum_{i=1}^n$ \displaystyle\sum_{i=1}^n $\textstyle\sum_{i=1}^n$ \textstyle\sum_{i=1}^n $\scriptstyle x$ \scriptstyle x The size of a first sub/superscript $\scriptscriptstyle x$ \scriptscriptstyle x The size of subsequent sub/superscripts $\lim\limits_x$ \lim\limits_x $\lim\nolimits_x$ \lim\nolimits_x $\verb! x^2!$ \verb!x^2! $\text{x}$ \text{x} \text{…} will accept nested …$ fragments and render them in math mode. \text{…} will render an extended range of characters. See Letters inside \text. ## Symbols and Punctuation  % comment □ \Box … \dots % \% □ \square ⋯ \cdots # \# ■ \blacksquare ⋱ \ddots & \& $\triangle$ \triangle … \ldots _ \_ $\triangledown$ \triangledown ⋮ \vdots _ \textunderscore $\triangleleft$ \triangleleft … \mathellipsis – – $\triangleright$ \triangleright … \textellipsis – \textendash $\bigtriangledown$ \bigtriangledown ♭ \flat — –- $\bigtriangleup$ \bigtriangleup ♮ \natural — \textemdash ▲ \blacktriangle ♯ \sharp ’ ` ▼ \blacktriangledown ® \circledR ’ \textquoteleft ◀ \blacktriangleleft Ⓢ \circledS ’ \textquoteright ▶ \blacktriangleright ♣ \clubsuit “ \textquotedblleft ⋄ \diamond ♢ \diamondsuit ″ ″ ◊ \Diamond ♡ \heartsuit ” \textquotedblright ◊ \lozenge ♠ \spadesuit : \colon ⧫ \blacklozenge ∠ \angle ‵ \backprime ⋆ \star ∡ \measuredangle ′ \prime ★ \bigstar ∢ \sphericalangle < \textless | \textbar ⊤ \top > \textgreater ∥ \textbardbl ⊥ \bot { \textbraceleft } \textbraceright ✓ \checkmark † \dag † \dagger † \textdagger ‡ \ddag ‡ \ddagger ‡ \textdaggerdbl$ \ \textdollar £ \pounds £ \textsterling ¥ \yen √ \surd ° \degree ╲ \diagdown ╱ \diagup ℧ \mho ✠ \maltese ∇ \nabla ∞ \infty
 $\KaTeX$ \KaTeX $\LaTeX$ \LaTeX $\TeX$ \TeX Direct Input: £ ¥ ∇ ∞ · ∠ ∡ ∢ ♠ ♡ ♢ ♣ ♭ ♮ ♯ ✓

## Units

Units are proportioned as they are in TeX instead of CSS.

Unit Value Unit Value
em CSS em bp $\frac 1{72}$ inch × F × G
ex CSS ex pc 12 $\TeX$pt
mu $\frac 1{18}$ CSS em dd $\frac{1238}{1157}$ $\TeX$pt
pt $\frac 1{72.27}$ inch × F × G    cc $\frac{14856}{1157}$ $\TeX$pt
mm 1 mm × F × G nd $\frac{685}{642}$ $\TeX$pt
cm 1 cm × F × G nc $\frac{1370}{107}$ $\TeX$pt
in 1 inch × F × G sp $\frac 1{65536}$ $\TeX$pt
 where: F = $\large \frac{\text{font size of surrounding HTML text}}{10\text{ pt}}$ G = 1.21 by default, because $\TeX$ font-size is normally 1.21 × the surrounding font size. This value can be over-ridden by the CSS of an HTML page. For example, on this page, G = 1.0.

#### The effect of style and size

Unit textstyle scriptscript huge
em or ex $\rule{1em}{1em}$ $\scriptscriptstyle\rule{1em}{1em}$ $\huge\rule{1em}{1em}$
mu $\rule{18mu}{18mu}$ $\scriptscriptstyle\rule{18mu}{18mu}$ $\huge\rule{18mu}{18mu}$
others $\rule{10pt}{10pt}$ $\scriptscriptstyle\rule{10pt}{10pt}$ $\huge\rule{10pt}{10pt}$