PG Calculator (Second Edition) 2.2 (by P.Gridniew)
Multifunction scientific skinable Algebraic/RPN calculator for Windows

PG Calculator (Second Edition) 2.2 (by P.Gridniew)
Multifunction scientific skinable Algebraic/RPN calculator for Windows

CLK-Calculator 2006 (by Kobarg)
The perfect calculator solution for school, highschool, university and engineers

UCon: Integral Scientist Units Converter 1.42 (by Qivx Inc)
Units conversions, 33 categories, complex unit entry, calculator, import/export

Scientific Advantage Calculator 2.0 (by Formative Software, Inc.)
Unit Aware Calculator that lets you work with ft-in-fraction dimensional values

Human Calculator 2.5 (by alPHABit GL)
Compact and helpful calculator for windows

Calculator.NET 2.3 (by KTH)
Enhanced RPN calculator for Windows

FAS Calculator 1.1.0 (by FreeART Software)
Advanced scientific calculator with a lot of mathematical functions

Free Calculator 1.0 (by academy-info.com)
Free Calculator.

Inplace Calculator 4.3 (by Gracelogic)
Calculator with expression evaluator, currency/unit converter and more!

Scientific Advantage Calculator 2.0 (by Formative Software, Inc.)
Unit Aware Calculator that lets you work with ft-in-fraction dimensional values

RVal 1.12 (by Brian Taylor)
Electronic Engineer's solution to finding the optimum preferred resistor values.

WebCab Optimization for Delphi 2.6 (by WebCab Components)
Add optimization & Linear Programming solver to your .NET and COM Applications.

WebCab Optimization (J2EE Edition) 2.6 (by WebCab Components)
Enterprise Java Component for solving local or global optimization problems.

WebCab Optimization (J2SE Edition) 2.6 (by WebCab Components)
Java class library for solving local or global optimization problems.

MITCalc - Springs - 15 types 1.11 (by MITCalc)
Geometrical design and strength check of 15 springs types