Calcoo is a scientific calculator designed to provide maximum usability. The features that make Calcoo better than (at least some) other calculator programs are: . - bitmapped button labels and display digits to improve readability - no double-function buttons - you need to click only one button for any operation (except for arc-hyp trigonometric functions) - undo/redo buttons - both RPN (reverse Polish notation) and algebraic modes - copy/paste interaction with X clipboard - display tick marks to separate thousands - two memory registers with displays - displays for Y, Z, and T registers
