Free42 - HP-42S Emulator.
Now I have another reason to keep my Palm OS smartphone, the Centro. One of the first calculators I really used was the classic scientific calculator, the HP-42S. Introduced in 1988, it was as essential to calculations as the slide rule was in the 1950s. Now, for free, you can download, and use, the same calculator on your Palm phone. You can even "skin" it to look like a real calculator. Deja vue, all over again.
I love the HP-12C financial calculator, and when a 12C emulator hit the iPhone it made my day. And it was a free app, no less! Now I've always got an RPN calculator with me even when I'm not at the office (where my in the flesh 12C lives).
Posted by: Thomas Brown | January 30, 2009 at 03:02 PM