Calc98 is an awesome application that will improve the already Windows built-in calculator tool. It not only does arithmetic operations but also it works also for financial operations, unit conversion, constants, matrices, etc. Its interface is simple but its functionality is awesome, it's easy to install and understand because is like any other calculator except better.
It's fast, effective and precise. It has everything you need in a mathematical tool. Download it and try it now, you are going to love it for sure. It will make your life and work easier and faster without any system issues or complications.