16-17 May 2019 • Sofia, Bulgaria

Submission: 1 February 2019 • Notification: 1 March 2019 • Final Version: 1 April 2019

Help:Formulas

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Formulas on a wiki like Ifigenia can be represented in three ways, depending on the formula complexity and tools used:

  • Unicode characters - for simple formulas, of course :-)
  • Images - for formulas of any complexity, created as an image file (preferably .png or .gif) and uploaded locally.
  • TeX code - for formulas of any complexity - from very simple to extremely sophisticated

Maybe, for the users of Ifigenia TeX-coded formulas may turn out to be the most natural ones. They allow relatively good integration with other TeX documents and they can be further saved as image files, for the sake of integration with MS Word documents.

Formulas in TeX

In the wiki websites, TeX-formulas are distinguished from the rest of the text by enclosing them with the tags <math> </math>. A handy way is to click the Math button Button math.png and then write between the tags.

On Ifigenia, the TeX formulas are rendered using a public mimeTeX web service, so the process may be a bit slower, about 1 second per 1 <math>-call.

Rendered TeX formulas can be stored on the hard disk as images in .gif format (default) or .png (optional).

Here is a reference list for the various TeX commands in use.

Functions, symbols, special characters

Accents/Diacritics

\acute{a} \grave{a} \hat{a} \tilde{a} \breve{a} \acute{a} \grave{a} \hat{a} \tilde{a} \breve{a}\,\!
\check{a} \bar{a} \ddot{a} \dot{a} \check{a} \bar{a} \ddot{a} \dot{a}\,\!

Standard functions

\sin a \cos b \tan c \sin a \cos b \tan c\,\!
\sec d \csc e \cot f \sec d \csc e \cot f\,\!
\arcsin h \arccos i \arctan j \arcsin h \arccos i \arctan j\,\!
\sinh k \cosh l \tanh m \coth n \sinh k \cosh l \tanh m \coth n\,\!
\operatorname{sh}\,o\,\operatorname{ch}\,p\,\operatorname{th}\,q \operatorname{sh}\,o\,\operatorname{ch}\,p\,\operatorname{th}\,q\,\!
\operatorname{arsinh}\,r\,\operatorname{arcosh}\,s\,\operatorname{artanh}\,t \operatorname{arsinh}\,r\,\operatorname{arcosh}\,s\,\operatorname{artanh}\,t\,\!
\lim u \limsup v \liminf w \min x \max y \lim u \limsup v \liminf w \min x \max y\,\!
\inf z \sup a \exp b \ln c \lg d \log e \log_{10} f \ker g \inf z \sup a \exp b \ln c \lg d \log e \log_{10} f \ker g\,\!
\deg h \gcd i \Pr j \det k \hom l \arg m \dim n \deg h \gcd i \Pr j \det k \hom l \arg m \dim n\,\!

Modular arithmetic

s_k \equiv 0 \pmod{m} s_k \equiv 0 \pmod{m}\,\!
a\,\bmod\,b a\,\bmod\,b\,\!

Derivatives

\nabla \, \partial x \, dx \, \dot x \, \ddot y\, dy/dx\, \frac{dy}{dx}\, \frac{\partial^2 y}{\partial x_1\,\partial x_2} \nabla \, \partial x \, dx \, \dot x \, \ddot y\, dy/dx\, \frac{dy}{dx}\, \frac{\partial^2 y}{\partial x_1\,\partial x_2}

Sets

\forall \exists \empty \emptyset \varnothing \forall \exists \empty \emptyset \varnothing\,\!
\in \ni \not \in \notin \subset \subseteq \supset \supseteq \in \ni \not \in \notin \subset \subseteq \supset \supseteq\,\!
\cap \bigcap \cup \bigcup \biguplus \setminus \smallsetminus \cap \bigcap \cup \bigcup \biguplus \setminus \smallsetminus\,\!
\sqsubset \sqsubseteq \sqsupset \sqsupseteq \sqcap \sqcup \bigsqcup \sqsubset \sqsubseteq \sqsupset \sqsupseteq \sqcap \sqcup \bigsqcup\,\!

Operators

+ \oplus \bigoplus \pm \mp - + \oplus \bigoplus \pm \mp - \,\!
\times \otimes \bigotimes \cdot \circ \bullet \bigodot \times \otimes \bigotimes \cdot \circ \bullet \bigodot\,\!
\star * / \div \frac{1}{2} \star * / \div \frac{1}{2}\,\!

Logic

\land (or \and) \wedge \bigwedge \bar{q} \to p \land \wedge \bigwedge \bar{q} \to p\,\!
\lor \vee \bigvee \lnot \neg q \And \lor \vee \bigvee \lnot \neg q \And\,\!

Root

\sqrt{2} \sqrt[n]{x} \sqrt{2} \sqrt[n]{x}\,\!

Relations

\sim \approx \simeq \cong \dot= \overset{\underset{\mathrm{def}}{}}{=} \sim \approx \simeq \cong \dot=  \overset{\underset{\mathrm{def}}{}}{=}\,\!
\le < \ll \gg \ge > \equiv \not\equiv \ne \mbox{or} \neq \propto \le < \ll \gg \ge > \equiv \not\equiv \ne \mbox{or} \neq \propto\,\!

Geometric

\Diamond \Box \triangle \angle \perp \mid \nmid \| 45^\circ \Diamond \, \Box \, \triangle \, \angle \perp \, \mid \; \nmid \, \| 45^\circ\,\!

Arrows

\leftarrow (or \gets) \rightarrow (or \to) \nleftarrow \nrightarrow \leftrightarrow \nleftrightarrow \longleftarrow \longrightarrow \longleftrightarrow \leftarrow \rightarrow \nleftarrow \not\to \leftrightarrow \nleftrightarrow \longleftarrow \longrightarrow \longleftrightarrow \,\!
\Leftarrow \Rightarrow \nLeftarrow \nRightarrow \Leftrightarrow \nLeftrightarrow \Longleftarrow \Longrightarrow \Longleftrightarrow (or \iff) \Leftarrow \Rightarrow \nLeftarrow \nRightarrow \Leftrightarrow \nLeftrightarrow \Longleftarrow \Longrightarrow \Longleftrightarrow \,\!
\uparrow \downarrow \updownarrow \Uparrow \Downarrow \Updownarrow \nearrow \searrow \swarrow \nwarrow \uparrow \downarrow \updownarrow \Uparrow \Downarrow \Updownarrow  \nearrow \searrow \swarrow \nwarrow \,\!
\rightharpoonup \rightharpoondown \leftharpoonup \leftharpoondown \upharpoonleft \upharpoonright \downharpoonleft \downharpoonright \rightleftharpoons \leftrightharpoons \rightharpoonup \rightharpoondown \leftharpoonup \leftharpoondown \upharpoonleft \upharpoonright \downharpoonleft \downharpoonright \rightleftharpoons \leftrightharpoons \,\!
\curvearrowleft \circlearrowleft \Lsh \upuparrows \rightrightarrows \rightleftarrows \Rrightarrow \rightarrowtail \looparrowright \curvearrowleft \circlearrowleft \Lsh \upuparrows \rightrightarrows \rightleftarrows \Rrightarrow \rightarrowtail \looparrowright \,\!
\curvearrowright \circlearrowright \Rsh \downdownarrows \leftleftarrows \leftrightarrows \Lleftarrow \leftarrowtail \looparrowleft \curvearrowright \circlearrowright \Rsh \downdownarrows \leftleftarrows \leftrightarrows \Lleftarrow \leftarrowtail \looparrowleft \,\!
\mapsto \longmapsto \hookrightarrow \hookleftarrow \multimap \leftrightsquigarrow \rightsquigarrow \mapsto \longmapsto \hookrightarrow \hookleftarrow \multimap \leftrightsquigarrow \rightsquigarrow \,\!

Special

\And \eth \S \P \% \dagger \ddagger \ldots \cdots \And \eth \S \P \% \dagger \ddagger \ldots \cdots\,\!
\smile \frown \wr \triangleleft \triangleright \infty \bot \top \smile \frown \wr \triangleleft \triangleright \infty \bot \top\,\!
\vdash \vDash \Vdash \models \lVert \rVert \imath \hbar \vdash \vDash \Vdash \models \lVert \rVert \imath \hbar\,\!
\ell \mho \Finv \Re \Im \wp \complement \ell \mho \Finv \Re \Im \wp \complement\,\!
\diamondsuit \heartsuit \clubsuit \spadesuit \Game \flat \natural \sharp \diamondsuit \heartsuit \clubsuit \spadesuit \Game \flat \natural \sharp\,\!

Unsorted (new stuff)

\vartriangle \triangledown \lozenge \circledS \measuredangle \nexists \Bbbk \backprime \blacktriangle \blacktriangledown  \vartriangle \triangledown \lozenge \circledS \measuredangle \nexists \Bbbk \backprime \blacktriangle \blacktriangledown
\blacksquare \blacklozenge \bigstar \sphericalangle \diagup \diagdown \dotplus \Cap \Cup \barwedge  \blacksquare \blacklozenge \bigstar \sphericalangle \diagup \diagdown \dotplus \Cap \Cup \barwedge
\veebar \doublebarwedge \boxminus \boxtimes \boxdot \boxplus \divideontimes \ltimes \rtimes \leftthreetimes  \veebar \doublebarwedge \boxminus \boxtimes \boxdot \boxplus \divideontimes \ltimes \rtimes \leftthreetimes
\rightthreetimes \curlywedge \curlyvee \circleddash \circledast \circledcirc \centerdot \intercal \leqq \leqslant  \rightthreetimes \curlywedge \curlyvee \circleddash \circledast \circledcirc \centerdot \intercal \leqq \leqslant
\eqslantless \lessapprox \approxeq \lessdot \lll \lessgtr \lesseqgtr \lesseqqgtr \doteqdot \risingdotseq  \eqslantless \lessapprox \approxeq \lessdot \lll \lessgtr \lesseqgtr \lesseqqgtr \doteqdot \risingdotseq
\fallingdotseq \backsim \backsimeq \subseteqq \Subset \preccurlyeq \curlyeqprec \precsim \precapprox \vartriangleleft  \fallingdotseq \backsim \backsimeq \subseteqq \Subset \preccurlyeq \curlyeqprec \precsim \precapprox \vartriangleleft
\Vvdash \bumpeq \Bumpeq \geqq \geqslant \eqslantgtr \gtrsim \gtrapprox \eqsim \gtrdot  \Vvdash \bumpeq \Bumpeq \geqq \geqslant \eqslantgtr \gtrsim \gtrapprox \eqsim \gtrdot
\ggg \gtrless \gtreqless \gtreqqless \eqcirc \circeq \triangleq \thicksim \thickapprox \supseteqq  \ggg \gtrless \gtreqless \gtreqqless \eqcirc \circeq \triangleq \thicksim \thickapprox \supseteqq
\Supset \succcurlyeq \curlyeqsucc \succsim \succapprox \vartriangleright \shortmid \shortparallel \between \pitchfork  \Supset \succcurlyeq \curlyeqsucc \succsim \succapprox \vartriangleright \shortmid \shortparallel \between \pitchfork
\varpropto \blacktriangleleft \therefore \backepsilon \blacktriangleright \because \nleqslant \nleqq \lneq \lneqq  \varpropto \blacktriangleleft \therefore \backepsilon \blacktriangleright \because \nleqslant \nleqq \lneq \lneqq
\lvertneqq \lnsim \lnapprox \nprec \npreceq \precneqq \precnsim \precnapprox \nsim \nshortmid  \lvertneqq \lnsim \lnapprox \nprec \npreceq \precneqq \precnsim \precnapprox \nsim \nshortmid
\nvdash \nVdash \ntriangleleft \ntrianglelefteq \nsubseteq \nsubseteqq \varsubsetneq \subsetneqq \varsubsetneqq \ngtr  \nvdash \nVdash \ntriangleleft \ntrianglelefteq \nsubseteq \nsubseteqq \varsubsetneq \subsetneqq \varsubsetneqq \ngtr
\subsetneq \subsetneq
\ngeqslant \ngeqq \gneq \gneqq \gvertneqq \gnsim \gnapprox \nsucc \nsucceq \succneqq  \ngeqslant \ngeqq \gneq \gneqq \gvertneqq \gnsim \gnapprox \nsucc \nsucceq \succneqq
\succnsim \succnapprox \ncong \nshortparallel \nparallel \nvDash \nVDash \ntriangleright \ntrianglerighteq \nsupseteq  \succnsim \succnapprox \ncong \nshortparallel \nparallel \nvDash \nVDash \ntriangleright \ntrianglerighteq \nsupseteq
\nsupseteqq \varsupsetneq \supsetneqq \varsupsetneqq  \nsupseteqq \varsupsetneq \supsetneqq \varsupsetneqq
\jmath \surd \ast \uplus \diamond \bigtriangleup \bigtriangledown \ominus \jmath \surd \ast \uplus \diamond \bigtriangleup \bigtriangledown \ominus\,\!
\oslash \odot \bigcirc \amalg \prec \succ \preceq \succeq \oslash \odot \bigcirc \amalg \prec \succ \preceq \succeq\,\!
\dashv \asymp \doteq \parallel \dashv \asymp \doteq \parallel\,\!
\ulcorner \urcorner \llcorner \lrcorner \ulcorner \urcorner \llcorner \lrcorner

Subscripts, superscripts, integrals

Feature Syntax How it looks rendered
HTML PNG
Superscript a^2 a^2 a^2 \,\!
Subscript a_2 a_2 a_2 \,\!
Grouping a^{2+2} a^{2+2} a^{2+2}\,\!
a_{i,j} a_{i,j} a_{i,j}\,\!
Combining sub & super x_2^3 x_2^3
Super super 10^{10^{ \,\!{8} } 10^{10^{ \,\! 8 } }
Super super 10^{10^{ \overset{8}{} }} 10^{10^{ \overset{8}{} }}
Super super (wrong in HTML in some browsers) 10^{10^8} 10^{10^8}
Preceding and/or Additional sub & super \sideset{_1^2}{_3^4}\prod_a^b \sideset{_1^2}{_3^4}\prod_a^b
{}_1^2\!\Omega_3^4 {}_1^2\!\Omega_3^4
Stacking \overset{\alpha}{\omega} \overset{\alpha}{\omega}
\underset{\alpha}{\omega} \underset{\alpha}{\omega}
\overset{\alpha}{\underset{\gamma}{\omega}} \overset{\alpha}{\underset{\gamma}{\omega}}
\stackrel{\alpha}{\omega} \stackrel{\alpha}{\omega}
Derivative (forced PNG) x', y'', f', f''\!   x', y'', f', f''\!
Derivative (f in italics may overlap primes in HTML) x', y'', f', f'' x', y'', f', f'' x', y'', f', f''\!
Derivative (wrong in HTML) x^\prime, y^{\prime\prime} x^\prime, y^{\prime\prime} x^\prime, y^{\prime\prime}\,\!
Derivative (wrong in PNG) x\prime, y\prime\prime x\prime, y\prime\prime x\prime, y\prime\prime\,\!
Derivative dots \dot{x}, \ddot{x} \dot{x}, \ddot{x}
Underlines, overlines, vectors \hat a \ \bar b \ \vec c \hat a \ \bar b \ \vec c
\overrightarrow{a b} \ \overleftarrow{c d} \ \widehat{d e f} \overrightarrow{a b} \ \overleftarrow{c d} \ \widehat{d e f}
\overline{g h i} \ \underline{j k l} \overline{g h i} \ \underline{j k l}
Arrows A \xleftarrow{n+\mu-1} B \xrightarrow[T]{n\pm i-1} C  A \xleftarrow{n+\mu-1} B \xrightarrow[T]{n\pm i-1} C
Overbraces \overbrace{ 1+2+\cdots+100 }^{5050} \overbrace{ 1+2+\cdots+100 }^{5050}
Underbraces \underbrace{ a+b+\cdots+z }_{26} \underbrace{ a+b+\cdots+z }_{26}
Sum \sum_{k=1}^N k^2 \sum_{k=1}^N k^2
Sum (force \textstyle) \textstyle \sum_{k=1}^N k^2 \textstyle \sum_{k=1}^N k^2
Product \prod_{i=1}^N x_i \prod_{i=1}^N x_i
Product (force \textstyle) \textstyle \prod_{i=1}^N x_i \textstyle \prod_{i=1}^N x_i
Coproduct \coprod_{i=1}^N x_i \coprod_{i=1}^N x_i
Coproduct (force \textstyle) \textstyle \coprod_{i=1}^N x_i \textstyle \coprod_{i=1}^N x_i
Limit \lim_{n \to \infty}x_n \lim_{n \to \infty}x_n
Limit (force \textstyle) \textstyle \lim_{n \to \infty}x_n \textstyle \lim_{n \to \infty}x_n
Integral \int\limits_{1}^{3}\frac{e^3/x}{x^2}\, dx \int\limits_{1}^{3}\frac{e^3/x}{x^2}\, dx
Integral (alternate limits style) \int_{1}^{3}\frac{e^3/x}{x^2}\, dx \int_{1}^{3}\frac{e^3/x}{x^2}\, dx
Integral (force \textstyle) \textstyle \int\limits_{-N}^{N} e^x\, dx \textstyle \int\limits_{-N}^{N} e^x\, dx
Integral (force \textstyle, alternate limits style) \textstyle \int_{-N}^{N} e^x\, dx \textstyle \int_{-N}^{N} e^x\, dx
Double integral \iint\limits_D \, dx\,dy \iint\limits_D \, dx\,dy
Triple integral \iiint\limits_E \, dx\,dy\,dz \iiint\limits_E \, dx\,dy\,dz
Quadruple integral \iiiint\limits_F \, dx\,dy\,dz\,dt \iiiint\limits_F \, dx\,dy\,dz\,dt
Line or path integral \int_C x^3\, dx + 4y^2\, dy \int_C x^3\, dx + 4y^2\, dy
Closed line or path integral \oint_C x^3\, dx + 4y^2\, dy \oint_C x^3\, dx + 4y^2\, dy
Intersections \bigcap_1^n p \bigcap_1^n p
Unions \bigcup_1^k p \bigcup_1^k p

Alphabets and typefaces

Greek alphabet
\Alpha \Beta \Gamma \Delta \Epsilon \Zeta \Alpha \Beta \Gamma \Delta \Epsilon \Zeta \,\!
\Eta \Theta \Iota \Kappa \Lambda \Mu \Eta \Theta \Iota \Kappa \Lambda \Mu \,\!
\Nu \Xi \Pi \Rho \Sigma \Tau \Nu \Xi \Pi \Rho \Sigma \Tau\,\!
\Upsilon \Phi \Chi \Psi \Omega \Upsilon \Phi \Chi \Psi \Omega \,\!
\alpha \beta \gamma \delta \epsilon \zeta \alpha \beta \gamma \delta \epsilon \zeta \,\!
\eta \theta \iota \kappa \lambda \mu \eta \theta \iota \kappa \lambda \mu \,\!
\nu \xi \pi \rho \sigma \tau \nu \xi \pi \rho \sigma \tau \,\!
\upsilon \phi \chi \psi \omega \upsilon \phi \chi \psi \omega \,\!
\varepsilon \digamma \vartheta \varkappa \varepsilon \digamma \vartheta \varkappa \,\!
\varpi \varrho \varsigma \varphi \varpi \varrho \varsigma \varphi\,\!
Blackboard Bold/Scripts
\mathbb{A} \mathbb{B} \mathbb{C} \mathbb{D} \mathbb{E} \mathbb{F} \mathbb{G} \mathbb{A} \mathbb{B} \mathbb{C} \mathbb{D} \mathbb{E} \mathbb{F} \mathbb{G} \,\!
\mathbb{H} \mathbb{I} \mathbb{J} \mathbb{K} \mathbb{L} \mathbb{M} \mathbb{H} \mathbb{I} \mathbb{J} \mathbb{K} \mathbb{L} \mathbb{M} \,\!
\mathbb{N} \mathbb{O} \mathbb{P} \mathbb{Q} \mathbb{R} \mathbb{S} \mathbb{T} \mathbb{N} \mathbb{O} \mathbb{P} \mathbb{Q} \mathbb{R} \mathbb{S} \mathbb{T} \,\!
\mathbb{U} \mathbb{V} \mathbb{W} \mathbb{X} \mathbb{Y} \mathbb{Z} \mathbb{U} \mathbb{V} \mathbb{W} \mathbb{X} \mathbb{Y} \mathbb{Z}\,\!
boldface (vectors)
\mathbf{A} \mathbf{B} \mathbf{C} \mathbf{D} \mathbf{E} \mathbf{F} \mathbf{G} \mathbf{A} \mathbf{B} \mathbf{C} \mathbf{D} \mathbf{E} \mathbf{F} \mathbf{G} \,\!
\mathbf{H} \mathbf{I} \mathbf{J} \mathbf{K} \mathbf{L} \mathbf{M} \mathbf{H} \mathbf{I} \mathbf{J} \mathbf{K} \mathbf{L} \mathbf{M} \,\!
\mathbf{N} \mathbf{O} \mathbf{P} \mathbf{Q} \mathbf{R} \mathbf{S} \mathbf{T} \mathbf{N} \mathbf{O} \mathbf{P} \mathbf{Q} \mathbf{R} \mathbf{S} \mathbf{T} \,\!
\mathbf{U} \mathbf{V} \mathbf{W} \mathbf{X} \mathbf{Y} \mathbf{Z} \mathbf{U} \mathbf{V} \mathbf{W} \mathbf{X} \mathbf{Y} \mathbf{Z} \,\!
\mathbf{a} \mathbf{b} \mathbf{c} \mathbf{d} \mathbf{e} \mathbf{f} \mathbf{g} \mathbf{a} \mathbf{b} \mathbf{c} \mathbf{d} \mathbf{e} \mathbf{f} \mathbf{g} \,\!
\mathbf{h} \mathbf{i} \mathbf{j} \mathbf{k} \mathbf{l} \mathbf{m} \mathbf{h} \mathbf{i} \mathbf{j} \mathbf{k} \mathbf{l} \mathbf{m} \,\!
\mathbf{n} \mathbf{o} \mathbf{p} \mathbf{q} \mathbf{r} \mathbf{s} \mathbf{t} \mathbf{n} \mathbf{o} \mathbf{p} \mathbf{q} \mathbf{r} \mathbf{s} \mathbf{t} \,\!
\mathbf{u} \mathbf{v} \mathbf{w} \mathbf{x} \mathbf{y} \mathbf{z} \mathbf{u} \mathbf{v} \mathbf{w} \mathbf{x} \mathbf{y} \mathbf{z} \,\!
\mathbf{0} \mathbf{1} \mathbf{2} \mathbf{3} \mathbf{4} \mathbf{0} \mathbf{1} \mathbf{2} \mathbf{3} \mathbf{4} \,\!
\mathbf{5} \mathbf{6} \mathbf{7} \mathbf{8} \mathbf{9} \mathbf{5} \mathbf{6} \mathbf{7} \mathbf{8} \mathbf{9}\,\!
Boldface (greek)
\boldsymbol{\Alpha} \boldsymbol{\Beta} \boldsymbol{\Gamma} \boldsymbol{\Delta} \boldsymbol{\Epsilon} \boldsymbol{\Zeta} \boldsymbol{\Alpha} \boldsymbol{\Beta} \boldsymbol{\Gamma} \boldsymbol{\Delta} \boldsymbol{\Epsilon} \boldsymbol{\Zeta} \,\!
\boldsymbol{\Eta} \boldsymbol{\Theta} \boldsymbol{\Iota} \boldsymbol{\Kappa} \boldsymbol{\Lambda} \boldsymbol{\Mu} \boldsymbol{\Eta} \boldsymbol{\Theta} \boldsymbol{\Iota} \boldsymbol{\Kappa} \boldsymbol{\Lambda} \boldsymbol{\Mu}\,\!
\boldsymbol{\Nu} \boldsymbol{\Xi} \boldsymbol{\Pi} \boldsymbol{\Rho} \boldsymbol{\Sigma} \boldsymbol{\Tau} \boldsymbol{\Nu} \boldsymbol{\Xi} \boldsymbol{\Pi} \boldsymbol{\Rho} \boldsymbol{\Sigma} \boldsymbol{\Tau}\,\!
\boldsymbol{\Upsilon} \boldsymbol{\Phi} \boldsymbol{\Chi} \boldsymbol{\Psi} \boldsymbol{\Omega} \boldsymbol{\Upsilon} \boldsymbol{\Phi} \boldsymbol{\Chi} \boldsymbol{\Psi} \boldsymbol{\Omega}\,\!
\boldsymbol{\alpha} \boldsymbol{\beta} \boldsymbol{\gamma} \boldsymbol{\delta} \boldsymbol{\epsilon} \boldsymbol{\zeta} \boldsymbol{\alpha} \boldsymbol{\beta} \boldsymbol{\gamma} \boldsymbol{\delta} \boldsymbol{\epsilon} \boldsymbol{\zeta}\,\!
\boldsymbol{\eta} \boldsymbol{\theta} \boldsymbol{\iota} \boldsymbol{\kappa} \boldsymbol{\lambda} \boldsymbol{\mu} \boldsymbol{\eta} \boldsymbol{\theta} \boldsymbol{\iota} \boldsymbol{\kappa} \boldsymbol{\lambda} \boldsymbol{\mu}\,\!
\boldsymbol{\nu} \boldsymbol{\xi} \boldsymbol{\pi} \boldsymbol{\rho} \boldsymbol{\sigma} \boldsymbol{\tau} \boldsymbol{\nu} \boldsymbol{\xi} \boldsymbol{\pi} \boldsymbol{\rho} \boldsymbol{\sigma} \boldsymbol{\tau}\,\!
\boldsymbol{\upsilon} \boldsymbol{\phi} \boldsymbol{\chi} \boldsymbol{\psi} \boldsymbol{\omega} \boldsymbol{\upsilon} \boldsymbol{\phi} \boldsymbol{\chi} \boldsymbol{\psi} \boldsymbol{\omega}\,\!
\boldsymbol{\varepsilon} \boldsymbol{\digamma} \boldsymbol{\vartheta} \boldsymbol{\varkappa} \boldsymbol{\varepsilon} \boldsymbol{\digamma} \boldsymbol{\vartheta} \boldsymbol{\varkappa} \,\!
\boldsymbol{\varpi} \boldsymbol{\varrho} \boldsymbol{\varsigma} \boldsymbol{\varphi} \boldsymbol{\varpi} \boldsymbol{\varrho} \boldsymbol{\varsigma} \boldsymbol{\varphi}\,\!
Italics
\mathit{A} \mathit{B} \mathit{C} \mathit{D} \mathit{E} \mathit{F} \mathit{G} \mathit{A} \mathit{B} \mathit{C} \mathit{D} \mathit{E} \mathit{F} \mathit{G} \,\!
\mathit{H} \mathit{I} \mathit{J} \mathit{K} \mathit{L} \mathit{M} \mathit{H} \mathit{I} \mathit{J} \mathit{K} \mathit{L} \mathit{M} \,\!
\mathit{N} \mathit{O} \mathit{P} \mathit{Q} \mathit{R} \mathit{S} \mathit{T} \mathit{N} \mathit{O} \mathit{P} \mathit{Q} \mathit{R} \mathit{S} \mathit{T} \,\!
\mathit{U} \mathit{V} \mathit{W} \mathit{X} \mathit{Y} \mathit{Z} \mathit{U} \mathit{V} \mathit{W} \mathit{X} \mathit{Y} \mathit{Z} \,\!
\mathit{a} \mathit{b} \mathit{c} \mathit{d} \mathit{e} \mathit{f} \mathit{g} \mathit{a} \mathit{b} \mathit{c} \mathit{d} \mathit{e} \mathit{f} \mathit{g} \,\!
\mathit{h} \mathit{i} \mathit{j} \mathit{k} \mathit{l} \mathit{m} \mathit{h} \mathit{i} \mathit{j} \mathit{k} \mathit{l} \mathit{m} \,\!
\mathit{n} \mathit{o} \mathit{p} \mathit{q} \mathit{r} \mathit{s} \mathit{t} \mathit{n} \mathit{o} \mathit{p} \mathit{q} \mathit{r} \mathit{s} \mathit{t} \,\!
\mathit{u} \mathit{v} \mathit{w} \mathit{x} \mathit{y} \mathit{z} \mathit{u} \mathit{v} \mathit{w} \mathit{x} \mathit{y} \mathit{z} \,\!
\mathit{0} \mathit{1} \mathit{2} \mathit{3} \mathit{4} \mathit{0} \mathit{1} \mathit{2} \mathit{3} \mathit{4} \,\!
\mathit{5} \mathit{6} \mathit{7} \mathit{8} \mathit{9} \mathit{5} \mathit{6} \mathit{7} \mathit{8} \mathit{9}\,\!
Roman typeface
\mathrm{A} \mathrm{B} \mathrm{C} \mathrm{D} \mathrm{E} \mathrm{F} \mathrm{G} \mathrm{A} \mathrm{B} \mathrm{C} \mathrm{D} \mathrm{E} \mathrm{F} \mathrm{G} \,\!
\mathrm{H} \mathrm{I} \mathrm{J} \mathrm{K} \mathrm{L} \mathrm{M} \mathrm{H} \mathrm{I} \mathrm{J} \mathrm{K} \mathrm{L} \mathrm{M} \,\!
\mathrm{N} \mathrm{O} \mathrm{P} \mathrm{Q} \mathrm{R} \mathrm{S} \mathrm{T} \mathrm{N} \mathrm{O} \mathrm{P} \mathrm{Q} \mathrm{R} \mathrm{S} \mathrm{T} \,\!
\mathrm{U} \mathrm{V} \mathrm{W} \mathrm{X} \mathrm{Y} \mathrm{Z} \mathrm{U} \mathrm{V} \mathrm{W} \mathrm{X} \mathrm{Y} \mathrm{Z} \,\!
\mathrm{a} \mathrm{b} \mathrm{c} \mathrm{d} \mathrm{e} \mathrm{f} \mathrm{g} \mathrm{a} \mathrm{b} \mathrm{c} \mathrm{d} \mathrm{e} \mathrm{f} \mathrm{g}\,\!
\mathrm{h} \mathrm{i} \mathrm{j} \mathrm{k} \mathrm{l} \mathrm{m} \mathrm{h} \mathrm{i} \mathrm{j} \mathrm{k} \mathrm{l} \mathrm{m} \,\!
\mathrm{n} \mathrm{o} \mathrm{p} \mathrm{q} \mathrm{r} \mathrm{s} \mathrm{t} \mathrm{n} \mathrm{o} \mathrm{p} \mathrm{q} \mathrm{r} \mathrm{s} \mathrm{t} \,\!
\mathrm{u} \mathrm{v} \mathrm{w} \mathrm{x} \mathrm{y} \mathrm{z} \mathrm{u} \mathrm{v} \mathrm{w} \mathrm{x} \mathrm{y} \mathrm{z} \,\!
\mathrm{0} \mathrm{1} \mathrm{2} \mathrm{3} \mathrm{4} \mathrm{0} \mathrm{1} \mathrm{2} \mathrm{3} \mathrm{4} \,\!
\mathrm{5} \mathrm{6} \mathrm{7} \mathrm{8} \mathrm{9} \mathrm{5} \mathrm{6} \mathrm{7} \mathrm{8} \mathrm{9}\,\!
Fraktur typeface
\mathfrak{A} \mathfrak{B} \mathfrak{C} \mathfrak{D} \mathfrak{E} \mathfrak{F} \mathfrak{G} \mathfrak{A} \mathfrak{B} \mathfrak{C} \mathfrak{D} \mathfrak{E} \mathfrak{F} \mathfrak{G} \,\!
\mathfrak{H} \mathfrak{I} \mathfrak{J} \mathfrak{K} \mathfrak{L} \mathfrak{M} \mathfrak{H} \mathfrak{I} \mathfrak{J} \mathfrak{K} \mathfrak{L} \mathfrak{M} \,\!
\mathfrak{N} \mathfrak{O} \mathfrak{P} \mathfrak{Q} \mathfrak{R} \mathfrak{S} \mathfrak{T} \mathfrak{N} \mathfrak{O} \mathfrak{P} \mathfrak{Q} \mathfrak{R} \mathfrak{S} \mathfrak{T} \,\!
\mathfrak{U} \mathfrak{V} \mathfrak{W} \mathfrak{X} \mathfrak{Y} \mathfrak{Z} \mathfrak{U} \mathfrak{V} \mathfrak{W} \mathfrak{X} \mathfrak{Y} \mathfrak{Z} \,\!
\mathfrak{a} \mathfrak{b} \mathfrak{c} \mathfrak{d} \mathfrak{e} \mathfrak{f} \mathfrak{g} \mathfrak{a} \mathfrak{b} \mathfrak{c} \mathfrak{d} \mathfrak{e} \mathfrak{f} \mathfrak{g} \,\!
\mathfrak{h} \mathfrak{i} \mathfrak{j} \mathfrak{k} \mathfrak{l} \mathfrak{m} \mathfrak{h} \mathfrak{i} \mathfrak{j} \mathfrak{k} \mathfrak{l} \mathfrak{m} \,\!
\mathfrak{n} \mathfrak{o} \mathfrak{p} \mathfrak{q} \mathfrak{r} \mathfrak{s} \mathfrak{t} \mathfrak{n} \mathfrak{o} \mathfrak{p} \mathfrak{q} \mathfrak{r} \mathfrak{s} \mathfrak{t} \,\!
\mathfrak{u} \mathfrak{v} \mathfrak{w} \mathfrak{x} \mathfrak{y} \mathfrak{z} \mathfrak{u} \mathfrak{v} \mathfrak{w} \mathfrak{x} \mathfrak{y} \mathfrak{z} \,\!
\mathfrak{0} \mathfrak{1} \mathfrak{2} \mathfrak{3} \mathfrak{4} \mathfrak{0} \mathfrak{1} \mathfrak{2} \mathfrak{3} \mathfrak{4} \,\!
\mathfrak{5} \mathfrak{6} \mathfrak{7} \mathfrak{8} \mathfrak{9} \mathfrak{5} \mathfrak{6} \mathfrak{7} \mathfrak{8} \mathfrak{9}\,\!
Calligraphy/Script
\mathcal{A} \mathcal{B} \mathcal{C} \mathcal{D} \mathcal{E} \mathcal{F} \mathcal{G} \mathcal{A} \mathcal{B} \mathcal{C} \mathcal{D} \mathcal{E} \mathcal{F} \mathcal{G} \,\!
\mathcal{H} \mathcal{I} \mathcal{J} \mathcal{K} \mathcal{L} \mathcal{M} \mathcal{H} \mathcal{I} \mathcal{J} \mathcal{K} \mathcal{L} \mathcal{M} \,\!
\mathcal{N} \mathcal{O} \mathcal{P} \mathcal{Q} \mathcal{R} \mathcal{S} \mathcal{T} \mathcal{N} \mathcal{O} \mathcal{P} \mathcal{Q} \mathcal{R} \mathcal{S} \mathcal{T} \,\!
\mathcal{U} \mathcal{V} \mathcal{W} \mathcal{X} \mathcal{Y} \mathcal{Z} \mathcal{U} \mathcal{V} \mathcal{W} \mathcal{X} \mathcal{Y} \mathcal{Z}\,\!
Hebrew
\aleph \beth \gimel \daleth \aleph \beth \gimel \daleth\,\!
Feature Syntax How it looks rendered
non-italicised characters \mbox{abc} \mbox{abc} \mbox{abc} \,\!
mixed italics (bad) \mbox{if} n \mbox{is even} \mbox{if} n \mbox{is even} \mbox{if} n \mbox{is even} \,\!
mixed italics (good) \mbox{if }n\mbox{ is even} \mbox{if }n\mbox{ is even} \mbox{if }n\mbox{ is even} \,\!
mixed italics (more legible: ~ is a non-breaking space, while "\ " forces a space) \mbox{if}~n\ \mbox{is even} \mbox{if}~n\ \mbox{is even} \mbox{if}~n\ \mbox{is even} \,\!

Alternatives

Formulas in simple text

These can be produced with:

  • the keyboard symbols,
  • the symbols from the virtual keyboard (available by clicking on the Button more.png button in edit mode)
  • any other Unicode symbols
  • formatting commands like <sub> </sub> (subscript), <sup> </sup> (superscript), '' '' (italic)

The major drawback is that in this way only one-line simple formulas can be produced; multiline formula, fractions, matrices, etc cannot be created using simple text. However, it can prove handy for really small formula or variables/constants/functions definitions, and for people who do not master TeX.

Examples
Source code (in edit mode) Result (in read mode)
x<sup>2</sup> + y<sup>2</sup> = z<sup>2</sup>
x2 + y2 = z2
''π<sub>A</sub>(x) = 1 - (μ<sub>A</sub>(x) + ν<sub>A</sub>(x))''
πA(x) = 1 - (μA(x) + νA(x))
A = ∑<sub>i=1</sub><sup>n</sup> a<sub>i</sub>
A = ∑i=1n ai

Formulas in uploaded images

You may first want to read Help:Upload and Help:Images and files.

The major drawbacks of this approach are:

  • Images are difficult to edit, and need external graphic editor for this sake.
  • Images may scale down, but may not scale up well (unless in vector graphic format).
  • Images files may be unnecessary large.
  • Files can only be uploaded by registered users.

Comparison

Image

Equation-gn-transition-angle-brackets-3.png

[[Image:Equation-gn-transition-angle-brackets-3.png]]

Wiki markup

Z5 = < {l7, m4}, {l8, m5}, M5, Λ(l7, m3) >

where
  M5 =
 
    l8 m5
l7 true false
m4 W4,8 W4,5
Z<sub>5</sub> = < {l<sub>7</sub>, m<sub>4</sub>}, {l<sub>8</sub>, m<sub>5</sub>}, IM<sub>P</sub>, Λ(l<sub>7</sub>, m<sub>3</sub>) >
: where
{{index-matrix/start
 |matrix-id = IM<sub>P</sub>
 |columns = 2
 |1 = l<sub>8</sub>
 |2 = m<sub>5</sub>
}}
{{index-matrix/row-predic
 |columns= 2
 |row-id = l<sub>7</sub>
 |1 = true
 |2 = false
}}
{{index-matrix/row-predic
 |columns= 2
 |row-id = m<sub>4</sub>
 |1 = W<sub>4,8</sub>
 |2 = W<sub>4,5</sub>
}}
{{index-matrix/end}}

TeX

Failed to parse (syntax error): Z_5 = \big< \{ l_7, m_4 \}, \{ l_8, m_5 \}, \begin{array}{c|c c} & l_8 & m_5 \\ \hline l_7 & true & false \\ m_4 & W_{4,8} & W_{4,5} \\ \end{array}, \land (l_7, m_3) \big>

<math>
Z_5 = \big< \{ l_7, m_4 \}, \{ l_8, m_5 \}, 
\begin{array}{c|c c}  & l_8 & m_5 \\
\hline
l_7 & true & false \\
m_4 & W_{4,8} & W_{4,5} \\
\end{array},
\land (l_7, m_3) \big>
</math>

See also