ECCalcAnd Calculator в Android Market

ECCalcAnd Calculator (v. 1.2) Разработано MikeOkslonger

A really high class calculator with all the most important features plus many more. For instance trigonometry and logarithmic functions, complex numbers and Graph-drawing. Handles algebra and has both a built in derivative as well as a solve function (see screen-shots). New updates and features all the time.