Nice free basic scientific calculator
It's a nice for a free app. It's a basic calculator app with the appearance and style of a traditional hardware calculator. There are some settings to customize which mode needed for the math you are doing; however, it's features are limited to that of what a general calculator can do. If you are needing just a basic scientific calculator, RealCalc should suffice.
How I Use It
I used this as a calculator for scientific notation and basic arithmetic. Students were using the calculator to practice math problems.