Calculator Capabilities: 1. Trigonometric functions (sin, cosine, tangent, arcsin, arccos, & arctangent). 2. Base 10 and Natural logarithms and their inverse functions. 3. Square and Square root functions. 4. Conversion from HEX numbers to decimals and visa versa. NOTE: HEX values must be entered in uppercase only and cannot exceed the value 0xFFFFFFFF. 5. Power and nth root functions. 6. Ability to correct trailing digits of values being entered on the calculator’s display. 7. Support for complete operation of calculator functions via the Apple Extended Keyboard (F5 - F15 required). 8. Ability to cut, copy and paste to and from the clipboard. 9. Balloon help is available for menus, About Dialog box, calculator keys, and the icon in the Finder. 10. General information about the program (CalCulator II ReadMe document) is also available under the Help menu under Systems 6.0.x or 7. 11. Calculator remembers last used position on screen. 12. Shift key can be used with function and Clear keys to execute 2nd functions (e.g. arcsin instead of sin). When used with the Clear key only the last entry is cleared and not the entire equation. Likewise, the shift key can also be used with the mouse to access the 2nd Functions. 13. Calculator II retains the contents of its memory across uses of the program. 14. Calculator is AppleEvent aware of the core suite of events.