Ever wonder how they get all those equations to typeset so nicely on the page? Well there are a few ways to do it. One way to do it is to use Words equation editor and another is to use LaTex. Here on the problem solving website we can use LaTex fairly easily. All you need to do is embed your LaTex code with ["latex"]…["/latex"] (without the ” signs). Using this you can write up almost any mathematical expression you want!
For more info you can check out the WordPress (that's the group that hosts this website) documentation: