TAILIEUCHUNG - Calculator

Calculator The Calculator is much more than a simple four-function memory calculator. It can also act as a scientific calculator for students and scientists | . Calculator The Calculator is much more than a simple four-function memory calculator. It can also act as a scientific calculator for students and scientists a conversion calculator for metric and . measures and even a currency calculator for world travelers. The little Calculator widget in the Dashboard is quicker to open and it s great for quick four-function number crunches. But the standalone Calculator program is far more powerful. For example The calculator has three modes Basic Advanced and Programmer Figure 10-1 . Switch among them by choosing from the View menu or pressing -1 for Basic -2 for Advanced or -3 for Programmer . Tip You can also cycle among the three modes by repeatedly clicking what on most windows is the Zoom button the green round dot at upper left . It s a first for the Mac a Zoom button that changes function each time you click it but it s kind of neat. You can operate the calculator by clicking the onscreen buttons but it s much easier to press the corresponding number and symbol keys on your keyboard. you go you can make Calculator speak each key you press. The Mac s voice ensures that you don t mistype as you keep your eyes on the receipts in front of you typing by touch. Just choose Speech Speak Button Pressed to turn this feature on or off. You choosewhich voice does the talking in the Speech panel of System Preferences. Tip If you have a laptop don t miss the embedded numeric keypad superimposed on the right side of the keyboard and labeled on the keys in a different color ink. When you press the Fn key in the lower-left corner of the keyboard typing these keys produces the numbers instead of the letters. You can also press the NumLock key to stay in number mode so you don t have to keep pressing Fn. Press the C key to clear the calculator display. Once you ve calculated a result you can copy it using Edit Copy or -C and paste it directly into another program. The Calculator even offers Reverse Polish Notation RPN a system of

• Kỹ thuật lập trình
• công nghệ thông tin
• kỹ thuật lập trình
• hệ điều hành
• đồ họa thiết kế
• OReilly
• Mac
• OS
• Leopard
• The Missing Manual
• Calculator