Smart Calculator provides simple and advanced mathematical functions in a beautifully designed app. Key features • Perform four fundamental operations and engineering calculations. • Do scientific operations such as trigonometric, logarithmic, and exponential functions • To check the calculation history, tap the calculation history icon. To close the calculation history panel, tap the keypad icon. • You can use the previously inputted formulas. Tap the formula you need from the calculation history. • Plot 2D and 3D graphs. • And more - all from inside the app.