# [Solved] how to enable math expression by mathjax?

My environment as:

1. Windows 10

2. Tao is installed on c:\xampp, using TAO_3.1.0-RC7_Windows_setup.exe

My objective : trying to use latex in Tao item.

- Following the instruction appeared in

https://hub.taocloud.org/articles/third-party-tools-and-libraries/enable-math-expression-in-items,I download https://hub.taocloud.org/resources/taohub-articles/articles/third-party/mathjax-shrunk.zip and unzip its content at subdirectory c:\xampp\taoQtiItem\views\js\mathjax - Create a new testitm, I type \(ax^2+bx+c=0\) in that item content.
- Preview the item, mathjax do not have any effect on above math equation, I guess I haven't install mathjax correctly.

What step i missed?

This discussion has been closed.

## Comments

Now I have the answer:

1. unzip the content of mathjax-shrunk.zip into subdirectory c:\xampp\htdocs\taoQtiItem\views\js\mathjax

2. During edit item, put cursor at where math formula should appear, an icon with A in framed box popup, click that icon, a menu appeared, click the icon with symbol Pi, then we can type latex formula in latex box of math properties on right side panel.

Thanks all