Sicyon
Sicyon = expression calculator + constant database + units converter + solver + curve-fit more info download

Math Solver
Math Solver is a scientific calculator. more info download

Math Solver II
An advance scientific calculator, with step-by-step solution and the ability to plot one or more expressions. + alot more... more info download

IonCalc
Fast Programmable, expression based calculator for windows. Operates with real, complex, matrix and vectors. Unit conversion and plots functions. more info download

Sicyon Units Converter Pro
Multi-utility and fully customizable units converter, more than 400 units in 63 categories, immediate conversion, unit-by-unit conversion, convert units into their equivalent base units. more info download

Calculator Prompter
Calculator Prompter is a math expression calculator. Calcualtor Prompter has a built-in error recognition system that helps you get correct results. With Calculator Prompter you can enter the whole expression, including brackets, and operators.... more info download

Universal Conversion Calculator
A conversion calculator that will convert just about anything in one unit, or sets of units, into another. Hundreds of units are built in, and an unlimited number of custom units can be made from the built in units. If you need to know what 10... more info download

CalculatorX
CalculatorX is an enhanced expression calculator. It can evaluate an expression for one time. You can use Arithmetic, Logic, Bitwise and Relation operations in your expression. And many system constants and built-in functions can also be used in... more info download

Numero
Numero is a calculator program that does the order of operations, so you can type in the whole expression at once instead of just one number at a time. It has about everything that you would expect to see on a scientific calculator. Also, in addition more info download

1st Calculator
Handy and useful expression calculator and unit converter with skins. Main features: fully customizable interface with skins; keyboard shortcuts; all arithmetic operations, more than 20 functions; editable lists of constants and unit conversions;... more info download