Calculators - apps that are widely represented on mobile platforms, however, most of them allows to use only a minimal set of functions. But there are far more serious representatives such as Scientific Calculator Plus is a fully featured calculator which allows to calculate with fractions, complex numbers, physical constants. In addition, the app offers some useful features such as unit Converter, several memory slots, full manual, online opportunities, setting up style calculator, as well as a number of features typical of digital calculators from the PC.