MathJax is an open source JavaScript display engine for mathematics that works in all modern browsers. It allows LaTeX commands as input which are then rendered similar to the way LaTeX itself does it. Note that questions dealing with installation of MathJax, how it works, or rendering problems are widely considered to be off topic and are at risk of being closed. These questions can be asked on Stack Overflow (https://stackoverflow.com) instead.
MathJax is an open source JavaScript display engine for mathematics that works in all modern browsers. It allows LaTeX commands as input which are then rendered similar to the way LaTeX itself does it. Note that this software only uses a subset of the LaTeX markup, and is not LaTeX technology; questions that deal with installation of MathJax, how it works, or rendering problems are widely considered to be off topic and are at risk of being closed. Questions about installing, running, and debugging MathJax are better asked on sites with more of the relevant HTML, Javascript, and Mathjax-technology specific expertise, which can be found, among other places at http://stackoverflow.com or http://webmasters.stackexchange.com.
Detailed information about MathJax can be found on the official website and MathJax Forum.
MathJax and related software has been topic of the meta question How do we feel about MathJaX/jsMath/other spin-offs?.
