My Windows 7 didn't come with the entrance sign at math? Why might this be?

I looked at the computer Windows 7 in stores, and I discovered the Math Input Panel. I now have Windows 7 on my PC but I can not find the entrance sign mathematics everywhere.

It is under accessories. Then click the Start button, then click All Programs, click Accessories, then click on Math Panel. If you wish, you can click right click on Math Input Panel, then click Send to … and click Desktop to a shortcut on the desktop. Then you can right-click the shortcut on the desktop and click pin taskbar. _

Math Input Panel For Windows 7

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