PEMDAS

PEMDAS Publisher's Description:
PEMDAS is a scientific calculator with an easy-to-use interface for doing calculations with formulas and variables.

Next to the info button on the widget is a '+' button that expands the widget to show the formula and variable caches, which give one click access to everything you’ve done. You can clear the caches by pressing clear on your keyboard twice real fast (shift+delete for notebook users), or double clicking the clear button on the calculator.

In addition, PEMDAS lets you switch between degrees and radians, has support for percentages and most trig, log, and hyperbolic functions, lets you format the answer in scientific and engineering notation, and has a preference for thousands separators. You can also specify the precision of the calculation, and convert between hexadecimal, octal, binary, and decimal.

What's new in this version:

* Using a mouse to click the number and function pads on the widget now works correctly after calculating a formula.
* Fixed a bug that would cause about 5% of negative numbers to display incorrectly, being off by 2. For example, -238 would be displayed as -236. This only affected the answer displayed below the formula. Answers in the answer cache were displayed correctly, and the correct number was used in future calculations.
* Fixed a bug that caused multiples of 10, 100, etc. to be displayed off by 1 in largest digit, when the display precision was set to 2 or 3 on the back of the widget. Again, this did not affect the values used in future calculations or the number displayed in the answer cache.
* Fixed a bug that would cause negative numbers with a multliple of 3 digits to be displayed with a comma when thousands separators were enabled. For example, -333 would be displayed as -,333 .
* Fixed a bug where certain keyboard combinations would result in a zero being entered (such as alt+e). These keystrokes are now ignored.