Extension:Math/MathJax testing
MathJax is a JavaScript display engine for mathematics. It's an alternative to PNG rendering for Wikimedia sites. MathJax is slower to render, but more scalable (infinite zoom) and manipulable than PNG.
MathJax is currently enabled on this wiki (mediawiki.org), but you have to explicitly enable it in your user preferences (under Appearance -> Math). Otherwise you'll still see the old-school PNG images.
How to test:
- Enable MathJax
- Put some formulas below or in your sandbox
- Report issues on the talk page or report a bug against the "Math" extension (known issues)
Examples and tests edit
Most of the following examples were copied from the English Wikipedia math help page.
Quadratic polynomial edit
<math>ax^2 + bx + c = 0</math>
Quadratic polynomial (force PNG rendering) edit
<math>ax^2 + bx + c = 0\,\!</math>
Quadratic formula edit
<math>x={-b\pm\sqrt{b^2-4ac} \over 2a}</math>
Tall parentheses and fractions edit
<math>2 = \left( \frac{\left(3-x\right) \times 2}{3-x} \right)</math>
<math>S_{\text{new}} = S_{\text{old}} - \frac{ \left( 5-T \right) ^2} {2}</math>
Integrals edit
<math>\int_a^x \!\!\!\int_a^s f(y)\,dy\,ds = \int_a^x f(y)(x-y)\,dy</math>
Summation edit
<math>\sum_{i=0}^{n-1} i</math>
<math>\sum_{m=1}^\infty\sum_{n=1}^\infty\frac{m^2\,n} {3^m\left(m\,3^n+n\,3^m\right)}</math>
Differential equation edit
<math>u'' + p(x)u' + q(x)u=f(x),\quad x>a</math>
Complex numbers edit
<math>|\bar{z}| = |z|, |(\bar{z})^n| = |z|^n, \arg(z^n) = n \arg(z)</math>
Limits edit
<math>\lim_{z\rightarrow z_0} f(z)=f(z_0)</math>
Integral equation edit
<math>\phi_n(\kappa) = \frac{1}{4\pi^2\kappa^2} \int_0^\infty \frac{\sin(\kappa R)}{\kappa R} \frac{\partial}{\partial R} \left[R^2\frac{\partial D_n(R)}{\partial R}\right]\,dR</math>
Example edit
<math>\phi_n(\kappa) = 0.033C_n^2\kappa^{-11/3},\quad \frac{1}{L_0}\ll\kappa\ll\frac{1}{l_0}</math>
Continuation and cases edit
<math> f(x) = \begin{cases} 1 & -1 \le x < 0 \\ \frac{1}{2} & x = 0 \\ 1 - x^2 & \text{otherwise} \end{cases} </math>
Prefixed subscript edit
<math>{}_pF_q(a_1,\dots,a_p;c_1,\dots,c_q;z) = \sum_{n=0}^\infty \frac{(a_1)_n\cdots(a_p)_n}{(c_1)_n\cdots(c_q)_n} \frac{z^n}{n!}</math>
Fraction and small fraction edit
<math>\frac{a}{b}\ \tfrac{a}{b}</math>
Area of a quadrilateral edit
<math>S=dD\,\sin\alpha\!</math>
Volume of a sphere-stand edit
<math>V=\tfrac16\pi h\left[3\left(r_1^2+r_2^2\right)+h^2\right]</math>
Multiple equations edit
<math>{\begin{aligned}q_{1}&=\cos \left({\frac {\phi -\psi }{2}}\right)\sin \left({\frac {\theta }{2}}\right)\\q_{2}&=\sin \left({\frac {\phi -\psi }{2}}\right)\sin \left({\frac {\theta }{2}}\right)\\q_{3}&=\sin \left({\frac {\phi +\psi }{2}}\right)\cos \left({\frac {\theta }{2}}\right)\\q_{4}&=\cos \left({\frac {\phi +\psi }{2}}\right)\cos \left({\frac {\theta }{2}}\right)\end{aligned}}</math>
task T38059 edit
Failed to parse (unknown function "\upgamma"): {\displaystyle {{\upgamma}_{\text{S}}}={{\uprho}_{\text{S}}}\cdot \text{g}\quad[\text{kN}/\text{m}^\text{3}}
Equation references edit
- Failed to parse (unknown function "\begin{equation}"): {\displaystyle \begin{equation}\label{eq1} x = \sin(y) \end{equation}}
The above has label Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "http://localhost:6011/www.mediawiki.org/v1/":): {\displaystyle \ref{eq1}}
<math>\begin{equation}\label{eq1} x = \sin(y) \end{equation}</math> The above has label <math>\ref{eq1}</math>
CJK edit
- Failed to parse (syntax error): {\displaystyle 中文}
- (<math>\text{中文}</math> displays nothing)
- Failed to parse (syntax error): {\displaystyle 中\text{文}}
Textstyles edit
- should render as Failed to parse (unknown function "\tt"): {\displaystyle {\tt teletype\ text}}
- should render as Failed to parse (unknown function "\sf"): {\displaystyle {\sf sanserif\ text}}
- Failed to parse (Conversion error. Server ("https://wikimedia.org/api/rest_") reported: "Cannot get mml. TeX parse error: Undefined control sequence \emph"): {\displaystyle {\emph {emphasizedtext}}}
Also in Latex 2e
- Failed to parse (unknown function "\textmd"): {\displaystyle \textmd{midsize text}} should render as Failed to parse (unknown function "\md"): {\displaystyle {\md midsize\ text}}
- Failed to parse (unknown function "\textup"): {\displaystyle \textup{upper case text}} should render as Failed to parse (unknown function "\up"): {\displaystyle {\up upper\ case\ text}}
- Failed to parse (unknown function "\textsl"): {\displaystyle \textsl{slanted text}} should render as Failed to parse (unknown function "\sl"): {\displaystyle {\sl slanted\ text}}
- Failed to parse (unknown function "\textsc"): {\displaystyle \textsc{small cap text}} should render as Failed to parse (unknown function "\sc"): {\displaystyle {\sc small\ cap\ text}}
Nesting
- Failed to parse (unknown function "\upgamma"): {\displaystyle \textbf{\upgamma{Mathroman}}}
Math font styles
- Failed to parse (unknown function "\mathnormal"): {\displaystyle \mathnormal{normal\ text}}
Sizes
- Failed to parse (unknown function "\tiny"): {\displaystyle \tiny tiny}
- Failed to parse (unknown function "\scriptsize"): {\displaystyle \scriptsize scriptsize}
- Failed to parse (unknown function "\footnotesize"): {\displaystyle \footnotesize footnotesize}
- Failed to parse (unknown function "\small"): {\displaystyle \small small}
- Failed to parse (unknown function "\normalsize"): {\displaystyle \normalsize normalsize}
- Failed to parse (unknown function "\large"): {\displaystyle \large large}
- Failed to parse (unknown function "\Large"): {\displaystyle \Large Large}
- Failed to parse (unknown function "\LARGE"): {\displaystyle \LARGE LARGE}
- Failed to parse (unknown function "\huge"): {\displaystyle \huge huge}
- Failed to parse (unknown function "\Huge"): {\displaystyle \Huge Huge}