The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From ZurApps Research:
MathPad allows you to create documents with mathematical expressions using special mathematical keyboards. When creating a document in MathPad, it will automatically draw, re-size, and align the mathematical expressions, according to their content. Print or email the documents you create in PDF format Send and receive documents from other MathPad users MathPad keyboard with long tap on keys for additional similar operators Ability to change the colour of each selected expression Great for high school, college and university students Great for teachers and professors as well Connect to a wireless keyboardMathPad EDU includes the MultiDocs module that enables advanced features: Create and save multiple documents Share documents with other MathPad users Email document expressions as JPG files Copy of selected expression or of entire document to the iPad clipboardVideo Tutorials available at http://www.zurapps.com/mathpadMathPad is also available for Mac