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The first thing we want to do (and the most difficult), is check that you have the math fonts installed on your computer.
Click the "Show Me" link to the left.
If you can see the quadratic formula below (in true math symbol beauty), you are OK.
If you see what appears to be some kind of foreign code, you will need to download and install the fonts:
Option 1: Download the jsMathFontInstaller (executable file), and have the fonts installed automatically (Windows only).
Option 2: Click on the jsMath logo to the left and follow the directions. I suggest downloading TeX-fonts-25.zip
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x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
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