MathJax is a JavaScript platform to present mathematical formulas. This page is a test of using it from one of the blog posts.
Example code
When \(a \ne 0\), there are two solutions to \(ax^2 + bx + c = 0\) and they are:
$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
Maxwell equations
The famous equations:
$$\nabla \cdot \vec{E} = \frac{\rho}{\epsilon_0}\\$$
$$\nabla \cdot \vec{B} = 0$$
$$\nabla \times \vec{E} = - \frac{\partial B}{\partial t}$$
$$\nabla \times \vec{B} = \mu_{0}\vec{J} +\mu_{0}\epsilon_{0}\frac{\partial E}{\partial t}$$