On Physical Lines of Force — Rendering test

On Physical Lines of Force → Rendering test

A page for checking that this MediaWiki installation renders the wiki correctly. If everything below looks right, the import is complete. Delete this page once you are satisfied — it is the only page nothing links to.

1. Inline mathematics

Written as <math> ... </math>. The magnetic force has components $\alpha ,\beta ,\gamma$, the current components are $p,q,r$, and the permeability is $\mu$. A fraction inline looks like $\frac{d\gamma }{dy}$.

2. Displayed mathematics

Written as <math display="block"> ... </math>.

$$\mathrm{\nabla }\times 𝐄=-\frac{\partial 𝐁}{\partial t}$$

3. Numbered equations

texvc rejects \tag, so equation numbers are set inside the maths with \qquad\qquad\mathrm{(54)}. Every numbered equation in this wiki uses that form.

$$\frac{d(\mu \alpha )}{dt}=\frac{dQ}{dz}-\frac{dR}{dy}\mathrm{(}\mathrm{54}\mathrm{)}$$

4. Multi-line alignment

$$\begin{array}{cc}\mathrm{\nabla }\cdot 𝐃& =\rho \\ \mathrm{\nabla }\cdot 𝐁& =0\\ \mathrm{\nabla }\times 𝐄& =-\frac{\partial 𝐁}{\partial t}\\ \mathrm{\nabla }\times 𝐇& =𝐉+\frac{\partial 𝐃}{\partial t}\end{array}$$

5. Underbraces

Used on Prop. III to label the five terms.

$$X=\underset{\text{the force on currents}}{\underbrace{\mu \gamma q-\mu \beta r}}-\underset{\text{simple pressure}}{\underbrace{\frac{d{p}_0}{dx}}}$$

6. Mathematics in a table

Maxwell	modern
$\mu \alpha ,\mu \beta ,\mu \gamma$	$𝐁=\mu 𝐇$
$p,q,r$	$𝐉$
$F,G,H$	$𝐀$

7. Mathematics in a list

• the divergence: $\frac{d\alpha }{dx}+\frac{d\beta }{dy}+\frac{d\gamma }{dz}$
• the curl, one component: $\frac{d\gamma }{dy}-\frac{d\beta }{dz}$
• absolute values: $|𝐄|=c|𝐁|$

8. A figure

Vortex cells and the particles between them

9. Ordinary formatting

This sentence has bold, italic, underline and monospace in it, followed by inline maths $\mu =1$, then more bold.

A block quotation, which this wiki uses for every verbatim passage from Maxwell.

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Troubleshooting

Maths shows as raw markup. The Math extension is not installed or not enabled. Install Extension:Math, add wfLoadExtension( 'Math' ); to LocalSettings.php, then run php maintenance/update.php. All 935 equations in this wiki were validated against texvcjs — MediaWiki's own TeX checker — so none should be rejected.

Figures do not display. The 19 SVGs must be uploaded separately: an XML import carries page text only. Use Special:Upload, or run php maintenance/importImages.php /path/to/images. SVG uploads also need $wgFileExtensions[] = 'svg'; and, for rasterised thumbnails, $wgSVGConverter = 'rsvg';.

Links are red. Every internal link points at a page title under On Physical Lines of Force/. If the import was partial, re-run it. Titles are case-sensitive after the first letter.

Sub-page breadcrumbs are missing. Optional: add $wgNamespacesWithSubpages[NS_MAIN] = true; to LocalSettings.php for automatic parent links.

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