Power Calculator
 Microsoft Power Calculator power toy in Windows XP | |
| Developer(s) | Microsoft |
|---|---|
| Type | Calculator |
| Website | XP PowerToys |
Powertoy Calculator (Powercalc) is a graphical calculator application for Windows XP released as a PowerToy, which, unlike the built-in offering, does not evaluate every time an operator is entered. Rather, the entire expression must be entered for calculation. In the Numeric calculator mode, it presents a visual keypad, in all other modes the expression has to be typed in. A scrolling text area maintains a history of all calculations.
Powercalc also supports functions, of any arity, which can later be reused. For example, a function can be set by cube(x) = x * x * x, and later it can be used in an expression like 5 + cube(4). The advanced view also shows a graph of functions, along with a list of all the saved functions. A flyout window provides the option of choosing either a Cartesian co-ordinate system or polar co-ordinates. It can also save a list of variables for use in expression.
Vista compatibility
While the downloadable installer does not run on Vista, the .exe itself is compatible. It must be either extracted from the installer by other means, or copied from an XP machine's existing installation.