LiteralMath
Text editor with the additional capabilities of math notation and hypertext, aimed at the high school / college environment. Uses the RTF format known to Wordpad, Word. Generates HTML, so that math notation can be displayed by popular browsers. Users may specify links to other web documents... Math notation is based on special fonts, thereby allowing browsers to render math at the speed of text. ... Very useful for math communication over the web, with clarity, simplicity, and efficiency.
http://www.literal.eng.br/LMath24.exe - 2Mb - Download - Screenshot

Math Mechanixs
Math Mechanixs is an easy to use general purpose FREE math software program. (FREE registration is required after 60 days). The typical tool for obtaining answers to a mathematical problem has been the calculator. Unfortunately, a calculator can be very limiting. ... It also includes a Math Editor that allows the user to compute complex functions and expressions while keeping detailed notes on their work. ... Math Mechanixs also includes a comprehensive function library with over 170 predefined functions.
http://www.mathmechanixs.com/download/mathmech10021.exe - 6Mb - Download - Screenshot

Talmagi
Using keen logic and problem-solving skills, you'll face multiple math problems that are set up crossword-style. The math equations are set up horizontally, while a set of numbers in glass-breakers overlap multiple problems vertically. By moving the numbers in the beakers up or down, try to find... With the build-in editor, you can also design new puzzles. ... Handsome photo-quality graphic and a game focused on the gameplay. ... The operation of the game is simple.
http://www.dmagic.dk/talmagi/TalMagi2.zip - 2Mb - Download - Screenshot

GridinSoft Notepad Lite
Text editor with highlighting more than 55 formats of files! (C/C++, HTML, ASP, PHP, Perl.. ) Built-in Spell Checker, HEX editor, UNICODE, Code Templates, Auto Correction, Print preview, Bookmarks, export the text with highlighting to RTF, HTML and LaTeX format, support many character sets,...
http://www.gridinsoft.com/downloads/gsnote.exe - 1Mb - Download - Screenshot

Scientific Letter
Scientific Letter is a scientific mailer. It allows the user to create scientific mail messages with complex equations. This modern and beautiful scientific software makes the exchange of complex ideas simple. The scientific equation editor used in this software allows you to create complex... Mailer features: + Equations may be extremely complex + Highest quality scientific equation display + Beautiful design + Fine usability + Virus and Trojan protection + Lost data protection + Scientist-oriented address book + View incoming letters from Scientific Letter in their natural form +...
http://www.sciletter.com/demo/scisetup.exe - 321Kb - Download - Screenshot

Rapid-Pi
Rapid-Pi is an add-on for Microsoft Word (and other word processors) that will transform the way you enter mathematical formulae, equations and expressions into documents. Rapid-Pi was designed with a single purpose in mind - to save you time when editing math in documents. ... Rapid-Pi supports a large number of mathematical symbols and expressions, including all symbols supported by Microsoft Equation Editor. ... This means that you will continue to use your favorite word processor, inserting Rapid-Pi equations into your document whenever you need to enter math.
http://www.rapid-pi.com/downloads/Rapid-Pi-Setup.exe - 3Mb - Download - Screenshot

PLC Trainer 3
The NEW PLCTrainer version 3 uses RSLogix ladder logic look and feel and now includes analog instruction, an area that has been overlooked by most PLC training materials. Order now and receive a second CD free LogixPro, an RSLogix logic simulator. LogixPro, an ideal tool for learning the... The look, feel and operation of our ladder rung editor so closely mimics Allen Bradley's latest software offering, that many need a second look to be sure who's editor they're using. ... (all series 1747, 1771 and 1761) You must contact us for Workstation and Network versions and special pricing.
http://www.industrial-ebooks.com/CBT_software/Bin95PLCDemo.exe - 16Mb - Download - Screenshot

123Forms
Create perfect, professional looking web forms in minutes. Handles validation, totals, conditions, math functions. Use it for order forms, contact forms, expense reports, surveys, reservation forms, application forms. Easy to learn: Uses Excel as an editor. ... Example uses: Order forms with immediate calculation of totals, shipping costs, discounts, VAT. ... Contact forms: make it easy for your visitors to ask for more information, request quotes etc. ... Free trial, 30 day money back guarantee.
http://www.123forms.com/download/forms.exe - 6Mb - Download - Screenshot

IBasic Professional
IBasic Professional is a full featured compiler and development environment for Windows. Creates small, fast, native executables and DLL's. The environment is modular with new commands available separately using add-on command sets (paks). An advanced 2D game and graphics command set is included... *Extensive operators and math functions. ... The robust IDE sports a source level debugger, integrated GUI designer, and resouce editor. ... *Easy window, dialog and control creation. ... *Supports indirect function calls.
http://www.pyxia.com/shareware/prodemo.zip - 4Mb - Download - Screenshot

GridinSoft Notepad
GridinSoft Notepad is designed to provide the power and functionality to satisfy the most demanding text editing requirements! Use of the standard Multiple Document Interface (MDI) allows many files to be edited simultaneously. The spelling checker has dictionaries for 7 languages, and... This editor has a many other nice features for beginners and professional programmers! ... GridinSoft Notepad has a built-in calculator that can evaluate math expressions. ... The output of user defined tools can optionally be captured in the built-in Console Window.
http://www.gridinsoft.com/downloads/gsnote32.zip - 2Mb - Download - Screenshot