Shareware and Freeware,

Math and HTML utilities

Quadratic Equation Solver ( qe.zip 53Kb, freeware )

Solves quadratic equations with real and imaginary roots.

The Truth Table Maker ( table101.zip 22Kb )

Draws up truth tables. Supports logical operators AND, OR XOR, NOT, IMPLIES, IS IMPLIED, and <==>

Diaphontein Solver ( freeware )

Diaphontein Equations are of the type ax + by = c
Because of the large number of possible solutions it is very difficult to solve these manualy. This freeware utility can solve them for x and y within specified range.

Anchor ( anchor.zip 11Kb, freeware )

A freeware program to grab anchors off HTML files. I use it quite often when I see a large HTML file absolutely loaded with links and I don't have time to go through all of them. I save the file to disk and run anchor on it, so that I can visit them at leisure

However the copying and distribution of the output from anchor may be in violation of copyright laws. And the author strongly discourages you from doing so

GCD ( gcd.zip, freeware )

A program to calculate the Greatest Common Devisor (gcd) of two integers.

Spaceit ( spaceit.zip, freeware )

Browsers and HTML editors convert a sequence of whitespace within a document to a single whitespace character. And sometimes Carriage Return / Line Feed pairs are converted to a single LF
This makes it very hard to read these files with an ordinary text editor such as Notepad
Spaceit restores the CR/LF pairs to make the reading easier.

Other Resources for shareware

WindTraveller.

Wind Search 95, is a Windows 95/NT programmer's tool to search and navigate source code and plain text.

Tucows

A massive collection of shareware links.

Walnut Creek CD-ROM

Lots of shareware and freeware including whole operating systems on CDs. They have an FTP archive of over 100 gega bytes