1. PEMDAS Widget Overview

PEMDAS Widget is a simple but powerful calculator for scientists, engineers, students, and other professions to use when working on problems with equations.

PEMDAS stands for Parenthesis, Exponents, Multiplication, Division, Addition, and Subtraction, an acronym sometimes taught to children to help them remember the order of operations.

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Requirements

To use PEMDAS Widget, you must have:

• A Mac computer with an Intel or PowerPC processor.
• Mac OS X v10.5.8 Leopard or later *
• 1 MB of available disk space

* Although PEMDAS may work on Mac OS X 10.4 Tiger, PEMDAS is no longer tested on that Mac OS X version, so unfortunately is not recommended to use it.

The User Interface

The primary features of PEMDAS widget are the equation entry field and result field. PEMDAS also features a keypad as the default view, as shown below.

The keypad can be toggled to show the variable and equation history by clicking the Equation History toggle button. This view features an equation history and a variable list:

In both modes, the bottom bar features quick access to the Number Formatting Type selection button, and the Degrees/Radians selection button.

The bottom bar also has an info button, which is used to get to the preferences on the back of the widget. And when in the Equation History View, it has a resize handle, which can be used to resize the widget into a Mini Mode.

Index

Next: Entering Equations