Judy's TenKey 5.7
Description from the publisher
Award-winning Windows calculator that includes nearly every feature imaginable, including a scrolling tape that automatically recalculates when you edit it. You can set Judy's TenKey to behave like a standard calculator, an adding machine, or a scientific calculator. A calculator is something you use every day ... why not use the best? Ziff-Davis named Judy's TenKey the Desktop Accessory of the Year!