A simple calculator with percent scientific calculator calculator with memory - all suitable to describe this application has a nice and functional interface style Material Design beautiful animation sliding bar.

Features:

-Graph
-Precomputed
-Preview the course of calculation (long click on the button element is or history)
-Basic arithmetic operations
-Logarithmic
-Trigonometric
-Exponentiation
-Factorial
-The root
-Interest

The choice of measures of angles: radians grads degrees.
History of calculations with possibility of choice of insertion of result or expression.
A good set of settings: the ability to choose how to fill the input window multi-line or single line disabling hibernation and others. In the app there is advertising.