Hi math fiends!
For all of you, who own an Android phone or tablet, I want to recommend great Android app, which can help you a lot with math.
You can have all useful math formulas and definitions handy and can always refer to them. There are a lot of drawings (including 3D), explaining all symbols used in formulas.
Range of material - high school.
Application is free and is available in the Android Market:
Almost 100.000 students are using it almost every day, so can you.
If you have any questions regarding this app, please email me using "Email Developer" link from the app page.