Mathematical Tools and Programming
Conversion Buddy
Excellent unit conversion program. And it's free. There are versions for Win 95/NT and Win 3.x. The Win 95/NT version includes Expression Buddy, a custom expression evaluator which calculates standard uncertainty.
DIGITAL Visual Fortran
If you are an old-fashioned engineer who is still programming in Fortran and if you use MS Fortran Powerstation, this site might be of interest to you.
Graphmatica
An excellent equation plotter. There are versions for MS-DOS, Windows 3.1, and Windows 95/NT. Shareware.
NEOS Server
Solve optimization problems over the Internet with state-of-the-art optimization software without downloading and linking code. You can submit problems via email, a Web browser, or a submission tool. You should also consult the NEOS Guide.
NLREG -- Nonlinear Regression Analysis Program
A statistical analysis program for Windows 95 and NT that performs linear and nonlinear regression analysis and curve fitting. Shareware demonstration version available.
OMDI Unit Calculator
Unit conversion program for the Power Mac which supports drag and drop. Though not free there is a fully functional, time limited demo available.
Ordinary Differential Equation (ODE) 'Calculator'
Solves ODEs as a boundary or initial value problem. ODE may be up to 9th order and non-linear and/or implicit. Runs on DOS (16 bit). Shareware.
SAL -- Scientific Applications on Linux
I know that my site is somewhat Microsoft centered concerning software. Therefore something completely different: a huge collection of scientific programs for Linux.
UCALC 4.0
A multipurpose calculator for Windows. Includes scientific expression evaluator, unit converter, equation solver and graphing,... Fully functional evaluation copy available.
Uniform 1.4e Unit Converter
An auxiliary program for Windows 3.1 and above which facilitates the conversion of units. It's fairly simple but free and no disk hog (100 kB download, 300 kB disk space after installation).
