iPhone has a great looking calculator by default but for all those who do not have it, here is an application that will allow you to operate the iPhone look-alike calculator right on your desktop.
All the iPhone owners will surely love this application which will give them the feel of using their iPhone in the windows as well.
The tool is called iCalcy and it is a perfect look-alike of the iPhone calculator. The tool also works in the landscape mode but the only thing is that currently it does not work in scientific mode.
iCalcy do not require any installation and is easy to use. It works perfect for all the normal operations like +, % and memory functions.