Math is an important part of our life. To help us calculators were invented. There are many kinds of calculators for your PC. If you need to see the whole path of your calculations and have the opportunity to print it you may use Calculator with paper roll. This calculator does not have a lot of built-in math or economic functions, there are only standard functions and 4 radix (DEC, HEX, BIN, OCT). The main advantage of this program is an opportunity to store operands with names. You can save the list of your operands to the hard drive and use it later. Another advantage is the possibility to print the whole operations list. There is a print preview. Also you can print both stored operands and operations list. In the program settings you can set the conversion rate or change the color of calculator's background and buttons. To use this program you need .NET Framework 2.0 installed on your computer (you can download it from the Microsoft site). This calculator supports Windows 2000/XP/2003 Server and Vista.