Over 1000 highly interactive science and engineering topics, use with any existing textbook, insert your own values and explore their effects, shows calculations, plots graphs, full colour graphics redrawn to scale for every change, explanatory text, step through topics, even makes revision enjoyable. Plus full colour printing showing your own chosen values, copy and paste to make custom teacher handouts or students course work, modify or add.

Over 500 highly interactive electrical engineering topics, use with any existing textbook, insert your own values and explore their effects, shows calculations, plots graphs, full colour graphics redrawn to scale for every change, explanatory text, step through topics, even makes revision enjoyable. Plus full colour printing showing your own chosen values, copy and paste to make custom teacher handouts or students course work, modify or add to

Palm Unit Converter is very fast and simple tool for Palm OS handhelds that allows you to convert more than 2400 units organized in 64 categories and 33 subcategories.

# Converts and calculates 2600 units
# Simple and fast, on-the-fly conversions
# Support for 64 unit categories with 33 subcategories
# All math performed using double precision floating point numbers

WinConverter is a rather straightforward application designs to provide as simple an interface as possible for performing unit conversion. WinConverter 2.1 is pre-configured to convert 1400 units in 76 categories. If you find WinConverter is missing a unit you need, it's very easy to add custom units or categories.
The categories include:
Area, Data Transfer, Length, Mass, Velocity, Volume, Time, Power, Force and many others.

Unit Converter Pro is a handy utility for practitioners in technical subjects. It can quickly convert more than 1400 different units in 76 categories.
It contains the most important conversion factors for length, area, volume, mass, force, and time units. But it provides many high-specialized units and categories, too.
Unit Converter Pro offers fully customizable databases.
The version 2 allows you to create conversion tables.
No restrictions

HAMIC, the HAM Intelligent Calculator, is designed to aid HAM perform a number of calculations. HAMIC has a simple to use, but powerful graphical interface that allows solving simple circuits such as resistors in series or parallel, or more complex circuits such as L networks or T networks. As well, other calculations such as SWR and reactance conversions are supported.