PDAcalc units

PDAcalc units is a conversion calculator that automatically performs unit conversions. Units of measurements, while not required, can help detect errors and enhance the display of computed results. When you first start PDAcalc units, a complete set of commonly used units is available for your calculations.

Online documentation

The functionality of PDAcalc units is not depending on the platform it is used on. A script written on your laptop works exactly the same on a PocketPC and a palm OS device. However a 800Mhz Pentium can process the scripts a bit faster then the processor in a palm OS device.

Computing with units

Use => to select which unit you want to convert to. For example if you like to convert 4 miles to kilometers type: 4mi=>km and press EXE. To calculate how many gallons a container of 1.2 yards wide, 2 feet deep and 11 inches high will hold type:
1.2yd*2ft*11in=>gal and press EXE

Without the conversion symbol '=>' PDAcalc units will convert the result to the base unit.
For example 110V * 16A will be converted to watts, 1760*(W)

When you try to add different units like 110V + 16A an error will be shown since this is not valid calculation. Its like adding apples and oranges which is not valid either.


Assigning units

Lets assume you like to compare the price of apples in the US with the price of apples in Europe. Type:
EUR=1.03USD
apples =1.29USD/lb
0.70kg*apples=>EUR


Changing the keyboard

The user can change the layout of the keyboard by changing a little text file. Commas separate the text for the buttons. The buttons are resized automatically depending on the total number of buttons per keyboard. 


Help information

To select a unit that is not shown on the keyboard select units from the help menu. After selecting a category a list of units will be shown. Added units are only shown in the appropriate category. After adding a unit like EUR=1.03USD this unit will only be shown in the currency category.


Base units