BREAKTRU PERCENT CE 

Calculate the percentage of any number out of any number. Great little tool to have on hand.
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Talmagi 

Train you logic and analytical abilities with this fascinating math-puzzle game for all ages
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Equation Illustrator V 

Equation Illustrator V is designed to ease the production of single page handout type documents and web graphics that include math/chemical equations simple vector graphics and pictures.
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Calculator.NET 

Calculator.NET replaces the standard calculator in Windows. It incorporates full RPN support, extended function set, and customizable user interface.
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Engineering Power Tools 

ENGINEERING POWER TOOLS solves a wide variety of common engineering problems quickly and easily. Over 70 programs and data tables integrated into one easy-to-use package. Categories include Math, HVAC, Mechanical, Electrical, Materials & Structural.
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Metalogic Calculator 

This calculator allows natural entry of equations (i.e. 17-(9*8) - 7 + 34.23). Then it goes beyond just giving you a result, the "steps" box, shows you how it solved the equation step by step. Results are given simultaneously in dec/hex/oct/bin.
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