View source for Help:Formulas

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<div style="float:right; margin-left: .5em">__TOC__</div>

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 <code>.png</code> or <code>.gif</code>) and [[Help:Upload|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 <code>.gif</code> images, for the sake of integration with 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 <code>&lt;math> &lt;/math></code>. A handy way is to click the Math button [[Image:Button_math.png]] and then write between the tags.

On Ifigenia, the TeX formulas are rendered using an external service, so the process may be a bit slower


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

=== Functions, symbols, special characters ===

<!-- Eight symbols per line seems to be optimal-->
{| class="wikitable"
! colspan="2" |<h3>Accents/Diacritics</h3>
|-
|<code>\acute{a} \grave{a} \hat{a} \tilde{a} \breve{a}</code>
|<math>\acute{a} \grave{a} \hat{a} \tilde{a} \breve{a}\,\!</math>
|-
|<code>\check{a} \bar{a} \ddot{a} \dot{a}</code>
|<math>\check{a} \bar{a} \ddot{a} \dot{a}\,\!</math>
|-
! colspan="2" |

<h3>Standard functions</h3>
|-
|<code>\sin a \cos b \tan c</code>
|<math>\sin a \cos b \tan c\,\!</math>
|-
|<code>\sec d \csc e \cot f</code>
|<math>\sec d \csc e \cot f\,\!</math>
|-
|<code>\arcsin h \arccos i \arctan j</code>
|<math>\arcsin h \arccos i \arctan j\,\!</math>
|-
|<code>\sinh k \cosh l \tanh m \coth n</code>
|<math>\sinh k \cosh l \tanh m \coth n\,\!</math>
|-
|<code>\operatorname{sh}\,o\,\operatorname{ch}\,p\,\operatorname{th}\,q</code>
|<math>\operatorname{sh}\,o\,\operatorname{ch}\,p\,\operatorname{th}\,q\,\!</math>
|-
|<code>\operatorname{arsinh}\,r\,\operatorname{arcosh}\,s\,\operatorname{artanh}\,t</code>
|<math>\operatorname{arsinh}\,r\,\operatorname{arcosh}\,s\,\operatorname{artanh}\,t\,\!</math>
|-
|<code>\lim u \limsup v \liminf w \min x \max y</code>
|<math>\lim u \limsup v \liminf w \min x \max y\,\!</math>
|-
|<code>\inf z \sup a \exp b \ln c \lg d \log e \log_{10} f \ker g</code>
|<math>\inf z \sup a \exp b \ln c \lg d \log e \log_{10} f \ker g\,\!</math>
|-
|<code>\deg h \gcd i \Pr j \det k \hom l \arg m \dim n</code>
|<math>\deg h \gcd i \Pr j \det k \hom l \arg m \dim n\,\!</math>
|-
! colspan="2" |

<h3>Modular arithmetic</h3>
|-
|<code>s_k \equiv 0 \pmod{m}</code>
|<math>s_k \equiv 0 \pmod{m}\,\!</math>
|-
|<code>a\,\bmod\,b</code>
|<math>a\,\bmod\,b\,\!</math>
|-
! colspan="2" | <h3>Derivatives</h3>
|-
|<code>\nabla \, \partial x \, dx \, \dot x \, \ddot y\, dy/dx\, \frac{dy}{dx}\, \frac{\partial^2 y}{\partial x_1\,\partial x_2}</code>
|<math>\nabla \, \partial x \, dx \, \dot x \, \ddot y\, dy/dx\, \frac{dy}{dx}\, \frac{\partial^2 y}{\partial x_1\,\partial x_2}</math>
|-
! colspan="2" |

<h3>Sets</h3>
|-
|<code>\forall \exists \empty \emptyset \varnothing</code>
|<math>\forall \exists \empty \emptyset \varnothing\,\!</math>
|-
|<code>\in \ni \not \in \notin \subset \subseteq \supset \supseteq</code>
|<math>\in \ni \not \in \notin \subset \subseteq \supset \supseteq\,\!</math>
|-
|<code>\cap \bigcap \cup \bigcup \biguplus \setminus \smallsetminus</code>
|<math>\cap \bigcap \cup \bigcup \biguplus \setminus \smallsetminus\,\!</math>
|-
|<code>\sqsubset \sqsubseteq \sqsupset \sqsupseteq \sqcap \sqcup \bigsqcup</code>
|<math>\sqsubset \sqsubseteq \sqsupset \sqsupseteq \sqcap \sqcup \bigsqcup\,\!</math>
|-
! colspan="2" |

<h3>Operators</h3>
|-
|<code>+ \oplus \bigoplus \pm \mp - </code>
|<math>+ \oplus \bigoplus \pm \mp - \,\!</math>
|-
|<code>\times \otimes \bigotimes \cdot \circ \bullet \bigodot</code>
|<math>\times \otimes \bigotimes \cdot \circ \bullet \bigodot\,\!</math>
|-
|<code>\star * / \div \frac{1}{2}</code>
|<math>\star * / \div \frac{1}{2}\,\!</math>
|-
! colspan="2" |

<h3>Logic</h3>
|-
|<code>\land (or \and) \wedge \bigwedge \bar{q} \to p</code>
|<math>\land \wedge \bigwedge \bar{q} \to p\,\!</math>
|-
|<code>\lor \vee \bigvee \lnot \neg q \And</code>
|<math>\lor \vee \bigvee \lnot \neg q \And\,\!</math>
|-
! colspan="2" |

<h3>Root</h3>
|-
|<code>\sqrt{2} \sqrt[n]{x}</code>
|<math>\sqrt{2} \sqrt[n]{x}\,\!</math>
|-
! colspan="2" | <h3>Relations</h3>
|-
|<code>\sim \approx \simeq \cong \dot=  \overset{\underset{\mathrm{def}}{}}{=}</code>
|<math>\sim \approx \simeq \cong \dot=  \overset{\underset{\mathrm{def}}{}}{=}\,\!</math>
|-
|<code>\le < \ll \gg \ge > \equiv \not\equiv \ne \mbox{or} \neq \propto</code>
|<math>\le < \ll \gg \ge > \equiv \not\equiv \ne \mbox{or} \neq \propto\,\!</math>
|-
! colspan="2" |

<h3>Geometric</h3>
|-
|<code><nowiki>\Diamond \Box \triangle \angle \perp \mid \nmid \| 45^\circ</nowiki></code>
|<math>\Diamond \, \Box \, \triangle \, \angle \perp \, \mid \; \nmid \, \| 45^\circ\,\!</math>
|-
! colspan="2" |

<h3>Arrows</h3>
|-
|<code>\leftarrow (or \gets) \rightarrow (or \to) \nleftarrow \nrightarrow \leftrightarrow \nleftrightarrow \longleftarrow \longrightarrow \longleftrightarrow</code>
|<math>\leftarrow \rightarrow \nleftarrow \not\to \leftrightarrow \nleftrightarrow \longleftarrow \longrightarrow \longleftrightarrow \,\!</math>
|-
|<code>\Leftarrow \Rightarrow \nLeftarrow \nRightarrow \Leftrightarrow \nLeftrightarrow \Longleftarrow \Longrightarrow \Longleftrightarrow (or \iff)</code>
|<math>\Leftarrow \Rightarrow \nLeftarrow \nRightarrow \Leftrightarrow \nLeftrightarrow \Longleftarrow \Longrightarrow \Longleftrightarrow \,\!</math>
|-
|<code>\uparrow \downarrow \updownarrow \Uparrow \Downarrow \Updownarrow  \nearrow \searrow \swarrow \nwarrow</code>
|<math>\uparrow \downarrow \updownarrow \Uparrow \Downarrow \Updownarrow  \nearrow \searrow \swarrow \nwarrow \,\!</math>
|-
|<code>\rightharpoonup \rightharpoondown \leftharpoonup \leftharpoondown \upharpoonleft \upharpoonright \downharpoonleft \downharpoonright \rightleftharpoons \leftrightharpoons</code>
|<math>\rightharpoonup \rightharpoondown \leftharpoonup \leftharpoondown \upharpoonleft \upharpoonright \downharpoonleft \downharpoonright \rightleftharpoons \leftrightharpoons \,\!</math>
|-
|<code>\curvearrowleft \circlearrowleft \Lsh \upuparrows \rightrightarrows \rightleftarrows \Rrightarrow \rightarrowtail \looparrowright</code>
|<math>\curvearrowleft \circlearrowleft \Lsh \upuparrows \rightrightarrows \rightleftarrows \Rrightarrow \rightarrowtail \looparrowright \,\!</math>
|-
|<code>\curvearrowright \circlearrowright \Rsh \downdownarrows \leftleftarrows \leftrightarrows \Lleftarrow \leftarrowtail \looparrowleft</code>
|<math>\curvearrowright \circlearrowright \Rsh \downdownarrows \leftleftarrows \leftrightarrows \Lleftarrow \leftarrowtail \looparrowleft \,\!</math>
|-
|<code>\mapsto \longmapsto \hookrightarrow \hookleftarrow \multimap \leftrightsquigarrow \rightsquigarrow </code>
|<math>\mapsto \longmapsto \hookrightarrow \hookleftarrow \multimap \leftrightsquigarrow \rightsquigarrow \,\!</math>
|-
! colspan="2" |

<h3>Special</h3>
|-
|<code>\And \eth \S \P \% \dagger \ddagger \ldots \cdots</code>
|<math>\And \eth \S \P \% \dagger \ddagger \ldots \cdots\,\!</math>
|-
|<code>\smile \frown \wr \triangleleft \triangleright \infty \bot \top</code>
|<math>\smile \frown \wr \triangleleft \triangleright \infty \bot \top\,\!</math>
|-
|<code>\vdash \vDash \Vdash \models \lVert \rVert \imath \hbar</code>
|<math>\vdash \vDash \Vdash \models \lVert \rVert \imath \hbar\,\!</math>
|-
|<code>\ell \mho \Finv \Re \Im \wp \complement</code>
|<math>\ell \mho \Finv \Re \Im \wp \complement\,\!</math>
|-
|<code>\diamondsuit \heartsuit \clubsuit \spadesuit \Game \flat \natural \sharp</code>
|<math>\diamondsuit \heartsuit \clubsuit \spadesuit \Game \flat \natural \sharp\,\!</math>
|-
! colspan="2" |

<h3>Unsorted (new stuff)</h3>
|-
|<code> \vartriangle \triangledown \lozenge \circledS \measuredangle \nexists \Bbbk \backprime \blacktriangle \blacktriangledown</code>
|<math> \vartriangle \triangledown \lozenge \circledS \measuredangle \nexists \Bbbk \backprime \blacktriangle \blacktriangledown</math>
|-
|<code> \blacksquare \blacklozenge \bigstar \sphericalangle \diagup \diagdown \dotplus \Cap \Cup \barwedge</code>
|<math> \blacksquare \blacklozenge \bigstar \sphericalangle \diagup \diagdown \dotplus \Cap \Cup \barwedge</math>
|-
|<code> \veebar \doublebarwedge \boxminus \boxtimes \boxdot \boxplus \divideontimes \ltimes \rtimes \leftthreetimes</code>
|<math> \veebar \doublebarwedge \boxminus \boxtimes \boxdot \boxplus \divideontimes \ltimes \rtimes \leftthreetimes</math>
|-
|<code> \rightthreetimes \curlywedge \curlyvee \circleddash \circledast \circledcirc \centerdot \intercal \leqq \leqslant</code>
|<math> \rightthreetimes \curlywedge \curlyvee \circleddash \circledast \circledcirc \centerdot \intercal \leqq \leqslant</math>
|-
|<code> \eqslantless \lessapprox \approxeq \lessdot \lll \lessgtr \lesseqgtr \lesseqqgtr \doteqdot \risingdotseq</code>
|<math> \eqslantless \lessapprox \approxeq \lessdot \lll \lessgtr \lesseqgtr \lesseqqgtr \doteqdot \risingdotseq</math>
|-
|<code> \fallingdotseq \backsim \backsimeq \subseteqq \Subset \preccurlyeq \curlyeqprec \precsim \precapprox \vartriangleleft</code>
|<math> \fallingdotseq \backsim \backsimeq \subseteqq \Subset \preccurlyeq \curlyeqprec \precsim \precapprox \vartriangleleft</math>
|-
|<code> \Vvdash \bumpeq \Bumpeq \geqq \geqslant \eqslantgtr \gtrsim \gtrapprox \eqsim \gtrdot</code>
|<math> \Vvdash \bumpeq \Bumpeq \geqq \geqslant \eqslantgtr \gtrsim \gtrapprox \eqsim \gtrdot</math>
|-
|<code> \ggg \gtrless \gtreqless \gtreqqless \eqcirc \circeq \triangleq \thicksim \thickapprox \supseteqq</code>
|<math> \ggg \gtrless \gtreqless \gtreqqless \eqcirc \circeq \triangleq \thicksim \thickapprox \supseteqq</math>
|-
|<code> \Supset \succcurlyeq \curlyeqsucc \succsim \succapprox \vartriangleright \shortmid \shortparallel \between \pitchfork</code>
|<math> \Supset \succcurlyeq \curlyeqsucc \succsim \succapprox \vartriangleright \shortmid \shortparallel \between \pitchfork</math>
|-
|<code> \varpropto \blacktriangleleft \therefore \backepsilon \blacktriangleright \because \nleqslant \nleqq \lneq \lneqq</code>
|<math> \varpropto \blacktriangleleft \therefore \backepsilon \blacktriangleright \because \nleqslant \nleqq \lneq \lneqq</math>
|-
|<code> \lvertneqq \lnsim \lnapprox \nprec \npreceq \precneqq \precnsim \precnapprox \nsim \nshortmid</code>
|<math> \lvertneqq \lnsim \lnapprox \nprec \npreceq \precneqq \precnsim \precnapprox \nsim \nshortmid</math>
|-
|<code> \nvdash \nVdash \ntriangleleft \ntrianglelefteq \nsubseteq \nsubseteqq \varsubsetneq \subsetneqq \varsubsetneqq \ngtr</code>
|<math> \nvdash \nVdash \ntriangleleft \ntrianglelefteq \nsubseteq \nsubseteqq \varsubsetneq \subsetneqq \varsubsetneqq \ngtr</math>
|-
|<code>\subsetneq</code>
|<math>\subsetneq</math>
|-
|<code> \ngeqslant \ngeqq \gneq \gneqq \gvertneqq \gnsim \gnapprox \nsucc \nsucceq \succneqq</code>
|<math> \ngeqslant \ngeqq \gneq \gneqq \gvertneqq \gnsim \gnapprox \nsucc \nsucceq \succneqq</math>
|-
|<code> \succnsim \succnapprox \ncong \nshortparallel \nparallel \nvDash \nVDash \ntriangleright \ntrianglerighteq \nsupseteq</code>
|<math> \succnsim \succnapprox \ncong \nshortparallel \nparallel \nvDash \nVDash \ntriangleright \ntrianglerighteq \nsupseteq</math>
|-
|<code> \nsupseteqq \varsupsetneq \supsetneqq \varsupsetneqq</code>
|<math> \nsupseteqq \varsupsetneq \supsetneqq \varsupsetneqq</math>
|-
|<code>\jmath \surd \ast \uplus \diamond \bigtriangleup \bigtriangledown \ominus</code>
|<math>\jmath \surd \ast \uplus \diamond \bigtriangleup \bigtriangledown \ominus\,\!</math>
|-
|<code>\oslash \odot \bigcirc \amalg \prec \succ \preceq \succeq</code>
|<math>\oslash \odot \bigcirc \amalg \prec \succ \preceq \succeq\,\!</math>
|-
|<code>\dashv \asymp \doteq \parallel</code>
|<math>\dashv \asymp \doteq \parallel\,\!</math>
|-
|<code>\ulcorner \urcorner \llcorner \lrcorner</code>
|<math>\ulcorner \urcorner \llcorner \lrcorner</math>
|}

=== Subscripts, superscripts, integrals ===
{| border="2" cellpadding="4" cellspacing="0" style="margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;"
!rowspan="2"|Feature!!rowspan="2"|Syntax!!colspan="2"|How it looks rendered
|-
!HTML!!PNG
|-
|-
|Superscript||<code>a^2</code>||<math>a^2</math>||<math>a^2 \,\!</math>
|-
|Subscript||<code>a_2</code>||<math>a_2</math>||<math>a_2 \,\!</math>
|-
|rowspan=2|Grouping||<code>a^{2+2}</code>||<math>a^{2+2}</math>||<math>a^{2+2}\,\!</math>
|-
|<code>a_{i,j}</code>||<math>a_{i,j}</math>||<math>a_{i,j}\,\!</math>
|-
|Combining sub & super||<code>x_2^3</code>||colspan=2|<math>x_2^3</math>
|-
|Super super||<code>10^{10^{ \,\!{8} }</code>||colspan=2|<math>10^{10^{ \,\! 8 } }</math>
|-
|Super super||<code>10^{10^{ \overset{8}{} }}</code>||colspan=2|<math>10^{10^{ \overset{8}{} }}</math>
|-
|Super super (wrong in HTML in some browsers)||<code>10^{10^8}</code> ||colspan=2|<math>10^{10^8}</math>
|-
|rowspan="2"|Preceding and/or Additional sub & super||<code>\sideset{_1^2}{_3^4}\prod_a^b</code>||colspan=2|<math>\sideset{_1^2}{_3^4}\prod_a^b</math>
|-
|<code>{}_1^2\!\Omega_3^4</code>||colspan=2|<math>{}_1^2\!\Omega_3^4</math>
|-
|rowspan="4"|Stacking
|<code>\overset{\alpha}{\omega}</code>||colspan="2"|<math>\overset{\alpha}{\omega}</math>
|-
|<code>\underset{\alpha}{\omega}</code>||colspan="2"|<math>\underset{\alpha}{\omega}</math>
|-
|<code>\overset{\alpha}{\underset{\gamma}{\omega}}</code>||colspan="2"|<math>\overset{\alpha}{\underset{\gamma}{\omega}}</math>
|-
|<code>\stackrel{\alpha}{\omega}</code>||colspan="2"|<math>\stackrel{\alpha}{\omega}</math>
|-
|Derivative (forced PNG)||<code>x', y<nowiki>''</nowiki>, f', f<nowiki>''</nowiki>\!</code>||&nbsp;||<math>x', y'', f', f''\!</math>
|-
|Derivative (f in italics may overlap primes in HTML)||<code>x', y<nowiki>''</nowiki>, f', f<nowiki>''</nowiki></code>||<math>x', y'', f', f''</math>||<math>x', y'', f', f''\!</math>
|-
|Derivative (wrong in HTML)||<code>x^\prime, y^{\prime\prime}</code>||<math>x^\prime, y^{\prime\prime}</math>||<math>x^\prime, y^{\prime\prime}\,\!</math>
|-
|Derivative (wrong in PNG)||<code>x\prime, y\prime\prime</code>||<math>x\prime, y\prime\prime</math>||<math>x\prime, y\prime\prime\,\!</math>
|-
|Derivative dots||<code>\dot{x}, \ddot{x}</code>||colspan=2|<math>\dot{x}, \ddot{x}</math>
|-
|rowspan="3"|Underlines, overlines, vectors||<code>\hat a \ \bar b \ \vec c</code>||colspan=2|<math>\hat a \ \bar b \ \vec c</math>
|-
|<code>\overrightarrow{a b} \ \overleftarrow{c d} \ \widehat{d e f}</code>||colspan=2|<math>\overrightarrow{a b} \ \overleftarrow{c d} \ \widehat{d e f}</math>
|-
|<code>\overline{g h i} \ \underline{j k l}</code>||colspan=2|<math>\overline{g h i} \ \underline{j k l}</math>
|-
|Arrows||<code> A \xleftarrow{n+\mu-1} B \xrightarrow[T]{n\pm i-1} C</code>||colspan=2|<math> A \xleftarrow{n+\mu-1} B \xrightarrow[T]{n\pm i-1} C</math>
|-
|Overbraces||<code>\overbrace{ 1+2+\cdots+100 }^{5050}</code>||colspan=2|<math>\overbrace{ 1+2+\cdots+100 }^{5050}</math>
|-
|Underbraces||<code>\underbrace{ a+b+\cdots+z }_{26}</code>||colspan=2|<math>\underbrace{ a+b+\cdots+z }_{26}</math>
|-
|Sum||<code>\sum_{k=1}^N k^2</code>||colspan=2|<math>\sum_{k=1}^N k^2</math>
|-
|Sum (force&nbsp;<code>\textstyle</code>)||<code>\textstyle \sum_{k=1}^N k^2 </code>||colspan=2|<math>\textstyle \sum_{k=1}^N k^2</math>
|-
|Product||<code>\prod_{i=1}^N x_i</code>||colspan=2|<math>\prod_{i=1}^N x_i</math>
|-
|Product (force&nbsp;<code>\textstyle</code>)||<code>\textstyle \prod_{i=1}^N x_i</code>||colspan=2|<math>\textstyle \prod_{i=1}^N x_i</math>
|-
|Coproduct||<code>\coprod_{i=1}^N x_i</code>||colspan=2|<math>\coprod_{i=1}^N x_i</math>
|-
|Coproduct (force&nbsp;<code>\textstyle</code>)||<code>\textstyle \coprod_{i=1}^N x_i</code>||colspan=2|<math>\textstyle \coprod_{i=1}^N x_i</math>
|-
|Limit||<code>\lim_{n \to \infty}x_n</code>||colspan=2|<math>\lim_{n \to \infty}x_n</math>
|-
|Limit (force&nbsp;<code>\textstyle</code>)||<code>\textstyle \lim_{n \to \infty}x_n</code>||colspan=2|<math>\textstyle \lim_{n \to \infty}x_n</math>
|-
|Integral||<code>\int\limits_{1}^{3}\frac{e^3/x}{x^2}\, dx</code>||colspan=2|<math>\int\limits_{1}^{3}\frac{e^3/x}{x^2}\, dx</math>
|-
|Integral (alternate limits style)||<code>\int_{1}^{3}\frac{e^3/x}{x^2}\, dx</code>||colspan=2|<math>\int_{1}^{3}\frac{e^3/x}{x^2}\, dx</math>
|-
|Integral (force&nbsp;<code>\textstyle</code>)||<code>\textstyle \int\limits_{-N}^{N} e^x\, dx</code>||colspan=2|<math>\textstyle \int\limits_{-N}^{N} e^x\, dx</math>
|-
|Integral (force&nbsp;<code>\textstyle</code>, alternate limits style)||<code>\textstyle \int_{-N}^{N} e^x\, dx</code>||colspan=2|<math>\textstyle \int_{-N}^{N} e^x\, dx</math>
|-
|Double integral||<code>\iint\limits_D \, dx\,dy</code>||colspan=2|<math>\iint\limits_D \, dx\,dy</math>
|-
|Triple integral||<code>\iiint\limits_E \, dx\,dy\,dz</code>||colspan=2|<math>\iiint\limits_E \, dx\,dy\,dz</math>
|-
|Quadruple integral||<code>\iiiint\limits_F \, dx\,dy\,dz\,dt</code>||colspan=2|<math>\iiiint\limits_F \, dx\,dy\,dz\,dt</math>
|-
|Line or path integral||<code>\int_C x^3\, dx + 4y^2\, dy</code>||colspan=2|<math>\int_C x^3\, dx + 4y^2\, dy</math>
|-
|Closed line or path integral||<code>\oint_C x^3\, dx + 4y^2\, dy</code>||colspan=2|<math>\oint_C x^3\, dx + 4y^2\, dy</math>
|-
|Intersections||<code>\bigcap_1^n p</code>||colspan=2|<math>\bigcap_1^n p</math>
|-
|Unions||<code>\bigcup_1^k p</code>||colspan=2|<math>\bigcup_1^k p</math>
|}

=== Alphabets and typefaces ===
{| class="wikitable"
! colspan="2" | Greek alphabet
|-
|<code><nowiki>\Alpha \Beta \Gamma \Delta \Epsilon \Zeta</nowiki></code>
|<math>\Alpha \Beta \Gamma \Delta \Epsilon \Zeta \,\!</math>
|-
|<code><nowiki>\Eta \Theta \Iota \Kappa \Lambda \Mu</nowiki></code>
|<math>\Eta \Theta \Iota \Kappa \Lambda \Mu \,\!</math>
|-
|<code><nowiki>\Nu \Xi \Pi \Rho \Sigma \Tau</nowiki></code>
|<math>\Nu \Xi \Pi \Rho \Sigma \Tau\,\!</math>
|-
|<code><nowiki>\Upsilon \Phi \Chi \Psi \Omega</nowiki></code>
|<math>\Upsilon \Phi \Chi \Psi \Omega \,\!</math>
|-
|<code><nowiki>\alpha \beta \gamma \delta \epsilon \zeta</nowiki></code>
|<math>\alpha \beta \gamma \delta \epsilon \zeta \,\!</math>
|-
|<code><nowiki>\eta \theta \iota \kappa \lambda \mu</nowiki></code>
|<math>\eta \theta \iota \kappa \lambda \mu \,\!</math>
|-
|<code><nowiki>\nu \xi \pi \rho \sigma \tau</nowiki></code>
|<math>\nu \xi \pi \rho \sigma \tau \,\!</math>
|-
|<code><nowiki>\upsilon \phi \chi \psi \omega</nowiki></code>
|<math>\upsilon \phi \chi \psi \omega \,\!</math>
|-
|<code><nowiki>\varepsilon \digamma \vartheta \varkappa</nowiki></code>
|<math>\varepsilon \digamma \vartheta \varkappa \,\!</math>
|-
|<code><nowiki>\varpi \varrho \varsigma \varphi</nowiki></code>
|<math>\varpi \varrho \varsigma \varphi\,\!</math>
|-
! colspan="2" | Blackboard Bold/Scripts
|-
|<code><nowiki>\mathbb{A} \mathbb{B} \mathbb{C} \mathbb{D} \mathbb{E} \mathbb{F} \mathbb{G}</nowiki></code>
|<math>\mathbb{A} \mathbb{B} \mathbb{C} \mathbb{D} \mathbb{E} \mathbb{F} \mathbb{G} \,\!</math>
|-
|<code><nowiki>\mathbb{H} \mathbb{I} \mathbb{J} \mathbb{K} \mathbb{L} \mathbb{M}</nowiki></code>
|<math>\mathbb{H} \mathbb{I} \mathbb{J} \mathbb{K} \mathbb{L} \mathbb{M} \,\!</math>
|-
|<code><nowiki>\mathbb{N} \mathbb{O} \mathbb{P} \mathbb{Q} \mathbb{R} \mathbb{S} \mathbb{T}</nowiki></code>
|<math>\mathbb{N} \mathbb{O} \mathbb{P} \mathbb{Q} \mathbb{R} \mathbb{S} \mathbb{T} \,\!</math>
|-
|<code><nowiki>\mathbb{U} \mathbb{V} \mathbb{W} \mathbb{X} \mathbb{Y} \mathbb{Z}</nowiki></code>
|<math>\mathbb{U} \mathbb{V} \mathbb{W} \mathbb{X} \mathbb{Y} \mathbb{Z}\,\!</math>
|-
! colspan="2" | boldface (vectors)
|-
|<code><nowiki>\mathbf{A} \mathbf{B} \mathbf{C} \mathbf{D} \mathbf{E} \mathbf{F} \mathbf{G}</nowiki></code>
|<math>\mathbf{A} \mathbf{B} \mathbf{C} \mathbf{D} \mathbf{E} \mathbf{F} \mathbf{G} \,\!</math>
|-
|<code><nowiki>\mathbf{H} \mathbf{I} \mathbf{J} \mathbf{K} \mathbf{L} \mathbf{M}</nowiki></code>
|<math>\mathbf{H} \mathbf{I} \mathbf{J} \mathbf{K} \mathbf{L} \mathbf{M} \,\!</math>
|-
|<code><nowiki>\mathbf{N} \mathbf{O} \mathbf{P} \mathbf{Q} \mathbf{R} \mathbf{S} \mathbf{T}</nowiki></code>
|<math>\mathbf{N} \mathbf{O} \mathbf{P} \mathbf{Q} \mathbf{R} \mathbf{S} \mathbf{T} \,\!</math>
|-
|<code><nowiki>\mathbf{U} \mathbf{V} \mathbf{W} \mathbf{X} \mathbf{Y} \mathbf{Z}</nowiki></code>
|<math>\mathbf{U} \mathbf{V} \mathbf{W} \mathbf{X} \mathbf{Y} \mathbf{Z} \,\!</math>
|-
|<code><nowiki>\mathbf{a} \mathbf{b} \mathbf{c} \mathbf{d} \mathbf{e} \mathbf{f} \mathbf{g}</nowiki></code>
|<math>\mathbf{a} \mathbf{b} \mathbf{c} \mathbf{d} \mathbf{e} \mathbf{f} \mathbf{g} \,\!</math>
|-
|<code><nowiki>\mathbf{h} \mathbf{i} \mathbf{j} \mathbf{k} \mathbf{l} \mathbf{m}</nowiki></code>
|<math>\mathbf{h} \mathbf{i} \mathbf{j} \mathbf{k} \mathbf{l} \mathbf{m} \,\!</math>
|-
|<code><nowiki>\mathbf{n} \mathbf{o} \mathbf{p} \mathbf{q} \mathbf{r} \mathbf{s} \mathbf{t}</nowiki></code>
|<math>\mathbf{n} \mathbf{o} \mathbf{p} \mathbf{q} \mathbf{r} \mathbf{s} \mathbf{t} \,\!</math>
|-
|<code><nowiki>\mathbf{u} \mathbf{v} \mathbf{w} \mathbf{x} \mathbf{y} \mathbf{z}</nowiki></code>
|<math>\mathbf{u} \mathbf{v} \mathbf{w} \mathbf{x} \mathbf{y} \mathbf{z} \,\!</math>
|-
|<code><nowiki>\mathbf{0} \mathbf{1} \mathbf{2} \mathbf{3} \mathbf{4}</nowiki></code>
|<math>\mathbf{0} \mathbf{1} \mathbf{2} \mathbf{3} \mathbf{4} \,\!</math>
|-
|<code><nowiki>\mathbf{5} \mathbf{6} \mathbf{7} \mathbf{8} \mathbf{9}</nowiki></code>
|<math>\mathbf{5} \mathbf{6} \mathbf{7} \mathbf{8} \mathbf{9}\,\!</math>
|-
! colspan="2" | Boldface (greek)
|-
|<code><nowiki>\boldsymbol{\Alpha} \boldsymbol{\Beta} \boldsymbol{\Gamma} \boldsymbol{\Delta} \boldsymbol{\Epsilon} \boldsymbol{\Zeta}</nowiki></code>
|<math>\boldsymbol{\Alpha} \boldsymbol{\Beta} \boldsymbol{\Gamma} \boldsymbol{\Delta} \boldsymbol{\Epsilon} \boldsymbol{\Zeta} \,\!</math>
|-
|<code><nowiki>\boldsymbol{\Eta} \boldsymbol{\Theta} \boldsymbol{\Iota} \boldsymbol{\Kappa} \boldsymbol{\Lambda} \boldsymbol{\Mu}</nowiki></code>
|<math>\boldsymbol{\Eta} \boldsymbol{\Theta} \boldsymbol{\Iota} \boldsymbol{\Kappa} \boldsymbol{\Lambda} \boldsymbol{\Mu}\,\!</math>
|-
|<code><nowiki>\boldsymbol{\Nu} \boldsymbol{\Xi} \boldsymbol{\Pi} \boldsymbol{\Rho} \boldsymbol{\Sigma} \boldsymbol{\Tau}</nowiki></code>
|<math>\boldsymbol{\Nu} \boldsymbol{\Xi} \boldsymbol{\Pi} \boldsymbol{\Rho} \boldsymbol{\Sigma} \boldsymbol{\Tau}\,\!</math>
|-
|<code><nowiki>\boldsymbol{\Upsilon} \boldsymbol{\Phi} \boldsymbol{\Chi} \boldsymbol{\Psi} \boldsymbol{\Omega}</nowiki></code>
|<math>\boldsymbol{\Upsilon} \boldsymbol{\Phi} \boldsymbol{\Chi} \boldsymbol{\Psi} \boldsymbol{\Omega}\,\!</math>
|-
|<code><nowiki>\boldsymbol{\alpha} \boldsymbol{\beta} \boldsymbol{\gamma} \boldsymbol{\delta} \boldsymbol{\epsilon} \boldsymbol{\zeta}</nowiki></code>
|<math>\boldsymbol{\alpha} \boldsymbol{\beta} \boldsymbol{\gamma} \boldsymbol{\delta} \boldsymbol{\epsilon} \boldsymbol{\zeta}\,\!</math>
|-
|<code><nowiki>\boldsymbol{\eta} \boldsymbol{\theta} \boldsymbol{\iota} \boldsymbol{\kappa} \boldsymbol{\lambda} \boldsymbol{\mu}</nowiki></code>
|<math>\boldsymbol{\eta} \boldsymbol{\theta} \boldsymbol{\iota} \boldsymbol{\kappa} \boldsymbol{\lambda} \boldsymbol{\mu}\,\!</math>
|-
|<code><nowiki>\boldsymbol{\nu} \boldsymbol{\xi} \boldsymbol{\pi} \boldsymbol{\rho} \boldsymbol{\sigma} \boldsymbol{\tau}</nowiki></code>
|<math>\boldsymbol{\nu} \boldsymbol{\xi} \boldsymbol{\pi} \boldsymbol{\rho} \boldsymbol{\sigma} \boldsymbol{\tau}\,\!</math>
|-
|<code><nowiki>\boldsymbol{\upsilon} \boldsymbol{\phi} \boldsymbol{\chi} \boldsymbol{\psi} \boldsymbol{\omega}</nowiki></code>
|<math>\boldsymbol{\upsilon} \boldsymbol{\phi} \boldsymbol{\chi} \boldsymbol{\psi} \boldsymbol{\omega}\,\!</math>
|-
|<code><nowiki>\boldsymbol{\varepsilon} \boldsymbol{\digamma} \boldsymbol{\vartheta} \boldsymbol{\varkappa}</nowiki></code>
|<math>\boldsymbol{\varepsilon} \boldsymbol{\digamma} \boldsymbol{\vartheta} \boldsymbol{\varkappa} \,\!</math>
|-
|<code><nowiki>\boldsymbol{\varpi} \boldsymbol{\varrho} \boldsymbol{\varsigma} \boldsymbol{\varphi}</nowiki></code>
|<math>\boldsymbol{\varpi} \boldsymbol{\varrho} \boldsymbol{\varsigma} \boldsymbol{\varphi}\,\!</math>
|-
! colspan="2" | Italics
|-
|<code><nowiki>\mathit{A} \mathit{B} \mathit{C} \mathit{D} \mathit{E} \mathit{F} \mathit{G}</nowiki></code>
|<math>\mathit{A} \mathit{B} \mathit{C} \mathit{D} \mathit{E} \mathit{F} \mathit{G} \,\!</math>
|-
|<code><nowiki>\mathit{H} \mathit{I} \mathit{J} \mathit{K} \mathit{L} \mathit{M}</nowiki></code>
|<math>\mathit{H} \mathit{I} \mathit{J} \mathit{K} \mathit{L} \mathit{M} \,\!</math>
|-
|<code><nowiki>\mathit{N} \mathit{O} \mathit{P} \mathit{Q} \mathit{R} \mathit{S} \mathit{T}</nowiki></code>
|<math>\mathit{N} \mathit{O} \mathit{P} \mathit{Q} \mathit{R} \mathit{S} \mathit{T} \,\!</math>
|-
|<code><nowiki>\mathit{U} \mathit{V} \mathit{W} \mathit{X} \mathit{Y} \mathit{Z}</nowiki></code>
|<math>\mathit{U} \mathit{V} \mathit{W} \mathit{X} \mathit{Y} \mathit{Z} \,\!</math>
|-
|<code><nowiki>\mathit{a} \mathit{b} \mathit{c} \mathit{d} \mathit{e} \mathit{f} \mathit{g}</nowiki></code>
|<math>\mathit{a} \mathit{b} \mathit{c} \mathit{d} \mathit{e} \mathit{f} \mathit{g} \,\!</math>
|-
|<code><nowiki>\mathit{h} \mathit{i} \mathit{j} \mathit{k} \mathit{l} \mathit{m}</nowiki></code>
|<math>\mathit{h} \mathit{i} \mathit{j} \mathit{k} \mathit{l} \mathit{m} \,\!</math>
|-
|<code><nowiki>\mathit{n} \mathit{o} \mathit{p} \mathit{q} \mathit{r} \mathit{s} \mathit{t}</nowiki></code>
|<math>\mathit{n} \mathit{o} \mathit{p} \mathit{q} \mathit{r} \mathit{s} \mathit{t} \,\!</math>
|-
|<code><nowiki>\mathit{u} \mathit{v} \mathit{w} \mathit{x} \mathit{y} \mathit{z}</nowiki></code>
|<math>\mathit{u} \mathit{v} \mathit{w} \mathit{x} \mathit{y} \mathit{z} \,\!</math>
|-
|<code><nowiki>\mathit{0} \mathit{1} \mathit{2} \mathit{3} \mathit{4}</nowiki></code>
|<math>\mathit{0} \mathit{1} \mathit{2} \mathit{3} \mathit{4} \,\!</math>
|-
|<code><nowiki>\mathit{5} \mathit{6} \mathit{7} \mathit{8} \mathit{9}</nowiki></code>
|<math>\mathit{5} \mathit{6} \mathit{7} \mathit{8} \mathit{9}\,\!</math>
|-
! colspan="2" | Roman typeface
|-
|<code><nowiki>\mathrm{A} \mathrm{B} \mathrm{C} \mathrm{D} \mathrm{E} \mathrm{F} \mathrm{G}</nowiki></code>
|<math>\mathrm{A} \mathrm{B} \mathrm{C} \mathrm{D} \mathrm{E} \mathrm{F} \mathrm{G} \,\!</math>
|-
|<code><nowiki>\mathrm{H} \mathrm{I} \mathrm{J} \mathrm{K} \mathrm{L} \mathrm{M}</nowiki></code>
|<math>\mathrm{H} \mathrm{I} \mathrm{J} \mathrm{K} \mathrm{L} \mathrm{M} \,\!</math>
|-
|<code><nowiki>\mathrm{N} \mathrm{O} \mathrm{P} \mathrm{Q} \mathrm{R} \mathrm{S} \mathrm{T}</nowiki></code>
|<math>\mathrm{N} \mathrm{O} \mathrm{P} \mathrm{Q} \mathrm{R} \mathrm{S} \mathrm{T} \,\!</math>
|-
|<code><nowiki>\mathrm{U} \mathrm{V} \mathrm{W} \mathrm{X} \mathrm{Y} \mathrm{Z}</nowiki></code>
|<math>\mathrm{U} \mathrm{V} \mathrm{W} \mathrm{X} \mathrm{Y} \mathrm{Z} \,\!</math>
|-
|<code><nowiki>\mathrm{a} \mathrm{b} \mathrm{c} \mathrm{d} \mathrm{e} \mathrm{f} \mathrm{g}</nowiki></code>
|<math>\mathrm{a} \mathrm{b} \mathrm{c} \mathrm{d} \mathrm{e} \mathrm{f} \mathrm{g}\,\!</math>
|-
|<code><nowiki>\mathrm{h} \mathrm{i} \mathrm{j} \mathrm{k} \mathrm{l} \mathrm{m}</nowiki></code>
|<math>\mathrm{h} \mathrm{i} \mathrm{j} \mathrm{k} \mathrm{l} \mathrm{m} \,\!</math>
|-
|<code><nowiki>\mathrm{n} \mathrm{o} \mathrm{p} \mathrm{q} \mathrm{r} \mathrm{s} \mathrm{t}</nowiki></code>
|<math>\mathrm{n} \mathrm{o} \mathrm{p} \mathrm{q} \mathrm{r} \mathrm{s} \mathrm{t} \,\!</math>
|-
|<code><nowiki>\mathrm{u} \mathrm{v} \mathrm{w} \mathrm{x} \mathrm{y} \mathrm{z}</nowiki></code>
|<math>\mathrm{u} \mathrm{v} \mathrm{w} \mathrm{x} \mathrm{y} \mathrm{z} \,\!</math>
|-
|<code><nowiki>\mathrm{0} \mathrm{1} \mathrm{2} \mathrm{3} \mathrm{4}</nowiki></code>
|<math>\mathrm{0} \mathrm{1} \mathrm{2} \mathrm{3} \mathrm{4} \,\!</math>
|-
|<code><nowiki>\mathrm{5} \mathrm{6} \mathrm{7} \mathrm{8} \mathrm{9}</nowiki></code>
|<math>\mathrm{5} \mathrm{6} \mathrm{7} \mathrm{8} \mathrm{9}\,\!</math>
|-
! colspan="2" | Fraktur typeface
|-
|<code><nowiki>\mathfrak{A} \mathfrak{B} \mathfrak{C} \mathfrak{D} \mathfrak{E} \mathfrak{F} \mathfrak{G}</nowiki></code>
|<math>\mathfrak{A} \mathfrak{B} \mathfrak{C} \mathfrak{D} \mathfrak{E} \mathfrak{F} \mathfrak{G} \,\!</math>
|-
|<code><nowiki>\mathfrak{H} \mathfrak{I} \mathfrak{J} \mathfrak{K} \mathfrak{L} \mathfrak{M}</nowiki></code>
|<math>\mathfrak{H} \mathfrak{I} \mathfrak{J} \mathfrak{K} \mathfrak{L} \mathfrak{M} \,\!</math>
|-
|<code><nowiki>\mathfrak{N} \mathfrak{O} \mathfrak{P} \mathfrak{Q} \mathfrak{R} \mathfrak{S} \mathfrak{T}</nowiki></code>
|<math>\mathfrak{N} \mathfrak{O} \mathfrak{P} \mathfrak{Q} \mathfrak{R} \mathfrak{S} \mathfrak{T} \,\!</math>
|-
|<code><nowiki>\mathfrak{U} \mathfrak{V} \mathfrak{W} \mathfrak{X} \mathfrak{Y} \mathfrak{Z}</nowiki></code>
|<math>\mathfrak{U} \mathfrak{V} \mathfrak{W} \mathfrak{X} \mathfrak{Y} \mathfrak{Z} \,\!</math>
|-
|<code><nowiki>\mathfrak{a} \mathfrak{b} \mathfrak{c} \mathfrak{d} \mathfrak{e} \mathfrak{f} \mathfrak{g}</nowiki></code>
|<math>\mathfrak{a} \mathfrak{b} \mathfrak{c} \mathfrak{d} \mathfrak{e} \mathfrak{f} \mathfrak{g} \,\!</math>
|-
|<code><nowiki>\mathfrak{h} \mathfrak{i} \mathfrak{j} \mathfrak{k} \mathfrak{l} \mathfrak{m}</nowiki></code>
|<math>\mathfrak{h} \mathfrak{i} \mathfrak{j} \mathfrak{k} \mathfrak{l} \mathfrak{m} \,\!</math>
|-
|<code><nowiki>\mathfrak{n} \mathfrak{o} \mathfrak{p} \mathfrak{q} \mathfrak{r} \mathfrak{s} \mathfrak{t}</nowiki></code>
|<math>\mathfrak{n} \mathfrak{o} \mathfrak{p} \mathfrak{q} \mathfrak{r} \mathfrak{s} \mathfrak{t} \,\!</math>
|-
|<code><nowiki>\mathfrak{u} \mathfrak{v} \mathfrak{w} \mathfrak{x} \mathfrak{y} \mathfrak{z}</nowiki></code>
|<math>\mathfrak{u} \mathfrak{v} \mathfrak{w} \mathfrak{x} \mathfrak{y} \mathfrak{z} \,\!</math>
|-
|<code><nowiki>\mathfrak{0} \mathfrak{1} \mathfrak{2} \mathfrak{3} \mathfrak{4}</nowiki></code>
|<math>\mathfrak{0} \mathfrak{1} \mathfrak{2} \mathfrak{3} \mathfrak{4} \,\!</math>
|-
|<code><nowiki>\mathfrak{5} \mathfrak{6} \mathfrak{7} \mathfrak{8} \mathfrak{9}</nowiki></code>
|<math>\mathfrak{5} \mathfrak{6} \mathfrak{7} \mathfrak{8} \mathfrak{9}\,\!</math>
|-
! colspan="2" | Calligraphy/Script
|-
|<code><nowiki>\mathcal{A} \mathcal{B} \mathcal{C} \mathcal{D} \mathcal{E} \mathcal{F} \mathcal{G}</nowiki></code>
|<math>\mathcal{A} \mathcal{B} \mathcal{C} \mathcal{D} \mathcal{E} \mathcal{F} \mathcal{G} \,\!</math>
|-
|<code><nowiki>\mathcal{H} \mathcal{I} \mathcal{J} \mathcal{K} \mathcal{L} \mathcal{M}</nowiki></code>
|<math>\mathcal{H} \mathcal{I} \mathcal{J} \mathcal{K} \mathcal{L} \mathcal{M} \,\!</math>
|-
|<code><nowiki>\mathcal{N} \mathcal{O} \mathcal{P} \mathcal{Q} \mathcal{R} \mathcal{S} \mathcal{T}</nowiki></code>
|<math>\mathcal{N} \mathcal{O} \mathcal{P} \mathcal{Q} \mathcal{R} \mathcal{S} \mathcal{T} \,\!</math>
|-
|<code><nowiki>\mathcal{U} \mathcal{V} \mathcal{W} \mathcal{X} \mathcal{Y} \mathcal{Z}</nowiki></code>
|<math>\mathcal{U} \mathcal{V} \mathcal{W} \mathcal{X} \mathcal{Y} \mathcal{Z}\,\!</math>
|-
! colspan="2" | Hebrew
|-
|<code><nowiki>\aleph \beth \gimel \daleth</nowiki></code>
|<math>\aleph \beth \gimel \daleth\,\!</math>
|}

<table class="wikitable">

<tr>
<th>Feature</th>
<th>Syntax</th>
<th colspan="2">How it looks rendered</th>
</tr>

<tr>
<td>non-italicised characters</td>
<td>\mbox{abc}</td>
<td><math>\mbox{abc}</math></td>
<td><math>\mbox{abc} \,\!</math></td>
</tr>

<tr>
<td>mixed italics (bad)</td>
<td>\mbox{if} n \mbox{is even}</td>
<td><math>\mbox{if} n \mbox{is even}</math></td>
<td><math>\mbox{if} n \mbox{is even} \,\!</math></td>
</tr>

<tr>
<td>mixed italics (good)</td>
<td>\mbox{if }n\mbox{ is even}</td>
<td><math>\mbox{if }n\mbox{ is even}</math></td>
<td><math>\mbox{if }n\mbox{ is even} \,\!</math></td>
</tr>

<tr>
<td>mixed italics (more legible: ~ is a non-breaking space, while "\ " forces a space)</td>
<td>\mbox{if}~n\ \mbox{is even}</td>
<td><math>\mbox{if}~n\ \mbox{is even}</math></td>
<td><math>\mbox{if}~n\ \mbox{is even} \,\!</math></td>
</tr>
</table>


== Alternatives ==
=== Formulas in simple text ===
These can be produced with:
* the keyboard symbols, 
* the symbols from the virtual keyboard (available by clicking on the [[Image:Button_more.png]] button in [[Help:Edit mode|edit mode]])
* any other Unicode symbols
* formatting commands like <code>&lt;sub> &lt;/sub></code> (subscript), <code>&lt;sup> &lt;/sup></code> (superscript), <code><nowiki>'' ''</nowiki></code> (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
{| width="100%" class="wikitable"
! width="70%" | Source code (in edit mode)
! width="30%" | Result (in read mode)
|-
| <pre>
x<sup>2</sup> + y<sup>2</sup> = z<sup>2</sup>
</pre>
|| x<sup>2</sup> + y<sup>2</sup> = z<sup>2</sup>
|-
| <pre>
''π<sub>A</sub>(x) = 1 - (μ<sub>A</sub>(x) + ν<sub>A</sub>(x))''
</pre>
|| ''π<sub>A</sub>(x) = 1 - (μ<sub>A</sub>(x) + ν<sub>A</sub>(x))''
|-
| <pre>
A = ∑<sub>i=1</sub><sup>n</sup> a<sub>i</sub>
</pre>
|| A = ∑<sub>i=1</sub><sup>n</sup> a<sub>i</sub>
|}

=== 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.

== See also ==

[[Category:Help pages|{{PAGENAME}}]]