Optional large screen display is very easy to read. Obtain the capitalized interest for installment plans, rule of three, capitalized amounts, and it even calculates your Ideal Weight, dates and times. This program reads and calculate values from clipboard and automatically saves calculations also to the clipboard. The undo function can undo or redo the last operation. It also accept entries (notes) in the calculation, has options to stay in SysTray and HotKeys to facilitate. It's possible show the calculator in big, standard or compact mode. The program supports English, Spanish, French and Portuguese. Version 9.0.274 has improved the x64 (64bit) OS and Windows Vista compatibility.