vCalc is a keyboard driven scientific calcualtor,
that works using the RPN notation common in well
known scientific calculators. It supports a complete set of math, binary
and statistical operations.

USPExpress Math Parser is a component that is aimed to parse and evaluate scientific, engineering and math expressions on-the-fly. There are .NET and COM editions of USPExpress available.

USPExpress has been widely used in numerous enterprise-level applications in the field of chemical engineering and statistical applications for over 3 years now.

Scientific Advantage? is a Unit Aware? calculator that lets you work with feet-inch-fraction dimensional values and includes advanced math functions, automatic solvers, and much more. Unit Aware? means that you can effortlessly compute with units (not just convert). It also has great options like algebraic and RPN entry, customizable buttons for unit entry, and display precision options. Available for both Windows and Pocket PCs.

More than 250 solutions with 6 keypads: standard/Engineering/Binary/Magnetics/trig/Convert. The Binary keypad is brand new, it helps manipulate unsigned binary integers. It has a complete help system with individual tips. You can select Fixed, Scientific, or Engineering notation and Degrees, Radians, or Grads for your calculations. It has a running tape display (Saves and Prints!), and keyboard entry option for most of the common function.

PG Calculator is a powerfull scientific calculator and an excellent replacement for standard calculator. It ofers full customizable user inteface and looks like real calculator on user desktop.
PG Calculator works in Algebraic and RPN modes. It works with real and complex numbers, units of measure, allows vectors manipulations. Up to 120 recognized units of measure, built-in unit converter. Time Value of Money Solver, commonly used constatants.

Loan Calc is an easy-to-use tool intended to calculate loans and mortgages repayments in a very simple way. Loan Calc calculates repayments amount, monthly and total interest, total repayments and generates a full repayment list from a start date. Loan Calc is currency-independent so it can be used with Dollars, Francs, Marks, Pounds,...or whatever you like. Just use a dot or a comma for decimals depending on your system settings. Loan Calc lets

perform arithmetic operations in either RPN (Reverse Polish Notation) or ALG (Algebraic) mode.more than one hundred functions are supported, including algebraic, trigonometric, hyperbolic, date, statistical, and financial functions.In addition to Farsight Calculator contains a set of powerful tools

DesktopCalc is an enhanced, easy-to-use and powerful scientific calculator with an expression editor, printing operation, result history list and integrated help. Desktop calculator gives students, teachers, scientists and engineers the power to find values for even the most complex equation set.

The perfect calculator solution for school, highschool, university and engineers

A+ Calc is a scientific calculator with a multi-line edit display that shows all calculations and allows editing and recalculating equations. A+ Calc includes hexadecimal, statistics, and unit conversion tools, and calculation save and load capability. Trial use only applies to premium features, most features are available free of charge. View, edit and recalculate with new values and/or operators. Simple uncluttered user interface.

Calculator.NET is an enhanced version of the standard calculator in Microsoft Windows. It uses RPN (Reverse Polish Notation), which is used by many pocket calculators, e.g. from HP. If you have used a HP 11/28/32/42/48, or any other RPN calculator, you will feel right at home. Some of the enhancements included: RPN, extended function set, and customizable user interface. This program is completely free.