Octal Keypad and Special Function Bindings The octal keypad and special function bindings are as follows: Display Button Key and Ctrl+F8 or & or Ctrl+F9 or | xor Ctrl+F10 or ^ nor Ctrl+F11 not Shift F9 or ~ neg Shift F10 or ! Additional topics: * Performing Arithmetic Functions * Entering Data from the Keyboard * Entering Data from the Keypad * Performing Special Functions * Clearing the Displays * Using Memory * Exiting Calculator * Using Calculator's Menus * Overview of Calculator