强于Windows自带的计算器， 它是很好的科学/财务计算器， 计算结果可以保存到文件或打印机。
ProKalc 7.9g | 1 Mb
ProKalc (short for Professional Kalkulator) is a 32-bit Microsoft Windows scientific and financial calculator. This version of ProKalc has a scrollable tape that shows the results of all calculations. ProKalc is an improvement over the Windows calculator since it shows 15 digits with no rounding errors.
ProKalc is very intuitive and easy to use. Even so, integrated help is available throughout the program giving help on all calculator functions. The user also has the ability to turn a 'hint' feature on so that a small pop-up hint box appears as the mouse cursor is moved over the buttons on the calculator face. The latest version allows the user to configure many features in the program, including window location and the color of various screen elements.
Home Page - http://www.showmepro.com