If you happen to use the Windows calculator or even excel sheets to perform simple calculations, this application described in this manual might come in handy. In fact this software allows you to perform calculations, formulas and even mini POWER-KI programs, thus allowing those interested to enter in Coding world. It is free and OpenSource, so you can modify it to your liking. The application can be downloaded from: http://www.power-ki.com/12_EN/CALCOLATRICE.html