If you are bored of typical desktop calculators, such as Windows, and want something different, try CCCalc. It is a small calculator totally different from the usual ones, its aesthetics simulates a paper notebook where to make notes with a pencil.
It works just like other calculators, with basic mathematical functions. But it also includes a series of options that you can change to customize it to your liking, such as: the type and size of the letter, the way to display the results, the number of decimals to display, use your own symbols, add A sound for each key you press, etc.
Its operation is very simple, just write the figures and operations to be performed and it will automatically appear on the screen. And if you need to consult a calculation made previously, you can do it through your history at any time. You can also copy the operations or results to the Windows clipboard for use in another application.
You can free download CCCalc 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.