MathJax sandbox:

Here’s some maths to test the MathJax include:

\[\frac{1}{\displaystyle 1+ \frac{1}{\displaystyle 2+ \frac{1}{\displaystyle 3+x}}} + \frac{1}{1+\frac{1}{2+\frac{1}{3+x}}}\]

I’d also like to check symbols like these: \(\hat{x}, \check{x}, \tilde{a}, \bar{\ell}, \dot{y}, \ddot{y}, \vec{z_1}, \vec{z}_1\)

Also, the inline a+b=c should work without affecting line spacing.

Let’s draw a pretty butterfly:

˙x=σ(yx)˙y=ρxyxz˙z=βz+xy

…and now, ‘Let there be light’:

×B1cEt=4πcjE=4πρ×E+1cBt=0B=0