Kalkulator
The Mother of all Calculators, a Swiss Army knife for scientists and engineers. Perhaps the most capable scientific/engineering calculator for Windows. On one hand, this is a calculator: evaluates expressions with more than 100 functions (trig/inverse, log/exp, statisical distributions, Euler,... Kalkulator has been evolving on various OS platforms for the last 15 years, being refined and polished through all this time, and its author has more than 25 years of active experience in numerical methods and software development.
http://www.wrotniak.net/works/kalkulator/_zip/kalkulator-inst.exe - 956Kb - Download - Screenshot

EMSolution Hyperbolic short
This bilingual problem-solving mathematics software allows you to work through 41087 hyperbolic problems with guided solutions, and encourages to learn through in-depth understanding of each solution step and repetition rather than through rote memorization. ... The software supports bilingual interface and a number of interface styles. ... The software includes all the hyperbolic and inverse hyperbolic functions and offers tasks on simplification and evaluation of hyperbolic expressions, proofs of hyperbolic identities and solutions of hyperbolic equations.
http://www.emteachline.com/light/emsolutionlight.exe - 4Mb - Download - Screenshot

Auto2Fit
Auto2Fit is a revolution tools and beats all other simliar ones in the area of nonlinear regression! Almost all data analysis software packages (SPSS, SAS, Statistical,Origin Pro, DataFit, Stata or Systat) need end-users to provide/guess initial start values, and the successes of nonlinear... Auto2Fit is also a flexible, versatile, easiest-to-use tool in the areas of function optimization, equation solving, parameter estimation, combinational problems (like TSP) and chart drawing. ... Levenberg-Marquardt (LM): standard LM and Global LM 8.
http://www.torry.net/apps/utilities/science/Auto2Fit_Setup3.zip - 0b - Download

EMSolution Trigonometry short
This bilingual problem-solving mathematics software allows you to work through 84102 trigonometric problems with guided solutions, and encourages to learn through in-depth understanding of each solution step and repetition rather than through rote memorization. ... The software supports bilingual interface and a number of interface styles. ... The software offers tasks on simplification and evaluation of trig expressions, proofs of trig identities and solutions of trig equations. ... A number of variant tests are ready for students to review and reinforce their skills.
http://www.emteachline.com/light/emsolutionlight.exe - 7Mb - Download - Screenshot

FindGraph
FindGraph is comprehensive graphing, curve fitting, and digitizing tool. FindGraph offers 12 generic fits, including linear regression, logistic functions, fourier approximation, neural networks, B-splines and parametric curves least squares approximations, plus a library of over 300... The program supports OLE automation and can be built-in to other software applications. ... The software enables you to smooth, interpolate, apply FFT and Wavelet filters, subtract, differentiate, integrate, and transform data and curves.
http://www.uniphiz.com/findgraph/fgraph.exe - 3Mb - Download - Screenshot

CuteDraw
CuteDraw is a vector-based graphic design software, novel, small and exquisite, quickly create illustrations, documents, manuals, posters, schemas, plans, flow charts, org charts etc. It will help you visualize and structure information, add illustrations and drawings to your documents and make... With one-click buttons to import word, excel, equation files. ... Insert your CuteDraw charts into other document in just minutes. ... XML file format. ... Predefined color scheme and style give your more creativity.
http://www.cutedraw.com/downloads/CuteDraw.exe - 5Mb - Download - Screenshot

Rimu Schematic
Rimu Schematic is professional quality electronic schematic capture software, designed for ease of use. Rimu Schematic follows familiar concepts and commands used in many other Windows applications. Presentation quality schematics - make a good impression on your employer or customers. ... PCB Netlist - import into your PCB layout software for error-free PCB layout. ... Design rules checking. ... Heirarchical design with a Sub-circuit Wizard to automatically create sub-circuit symbols from schematics, or vice versa.
http://www.hutson.co.nz/rimu.zip - 2Mb - Download - Screenshot

EMTask_Trigonometry
Test authoring mathematics software offers 168767 trigonometric problems from basic to advanced, with solutions and easy-to-use authoring options. Considered are all trigonometric and arc-trigonometric functions. Computational problems, transformation and evaluation of trigonometric expressions,... A number of variant tests are ready for students to review and reinforce their skills. ... Free fully functional demo version of this program is available. ... The program generates 20 variant tests around a constructed example.
http://www.emteachline.com/light/emtasklight.exe - 10Mb - Download - Screenshot

WebQuiz XP
WebQuiz XP is the new easy software product which allows you to create interactive HTML questionnaires, assessments, quizzes and tests that you can immediately answer on-screen or publish to the Internet. By using an easy wizard, you can enter the questions, define the options and then set the... Answers and results are stored into a database and/or sent by e-mail. ... A real-time Web Administration Interface monitors the progress of your tests. ... With just a mouse click your quizzes are then uploaded to the Internet and ready to be used.
ftp://ftp.smartlite.info/public/en/webquizxp/trial15/wbqizxpb.exe - 7Mb - Download - Screenshot

RTF-2-HTML v5
RTF-2-HTML v5 is a COM component that Converts RTF to HTML and HTML to RTF perfectly. RTF-2-HTML is now a v5 release, it is extremely stable having been eveloped over a period of 5 years, with the feedback from many thousands of customers. It has the feel of a very polished product with a hugh... RTF-2-HTML v5 does not require any additional software to convert RTF to HTML, such as MS Word which ALL of our competitors do. ... Converts and links to embedded images and objects, saves them as 100% lossless PNG or JPG files.
http://www.easybyte.com/download/rtf-2-html.exe - 5Mb - Download - Screenshot