Prime Number Spiral
The Prime Number Spiral (a. k. a. the Ulam Spiral) is constructed as follows: Consider a rectangular grid. We start with the central point and arrange the positive integers in a spiral fashion (anticlockwise). The prime numbers are then marked. There is a tendency for the prime numbers to occur... This is software is for exploring the Prime Number Spiral. ... It also (a) allows coloring of the prime numbers in various ways, (b) displays a random arrangement to compare with the primes and (c) shows how square and triangular numbers are located on the spiral.
http://www.hermetic.ch/pns/pns_setup.zip - 2Mb - Download - Screenshot

Crossword Power
Create multiple crossword puzzles from your vocabulary words and clues. Vocabulary words and matching clues are entered once, and saved for future use. The program can automatically print out up to 25 unique puzzles from each list. Combine word lists for review. ... Includes many optional features: optional help letters, fit to one page, open or rectangular grid, help letters, and spell checker. ... Great for teachers. ... Compatible with Vocabulary Power and WISCO Word Power from WISCO Computing.
http://www.wiscocomputing.com/files/crossp.exe - 930Kb - Download - Screenshot

HatchKit
HatchKit 2. 5 CAD Visual CAD Hatch Pattern Editor HatchKit provides a complete visual solution to your custom hatch pattern creation and modification requirements. HatchKit is also handy for inspecting hatch patterns. HatchKit 2. 5 supports the latest versions of Revit, AutoCAD, AutoCAD LT,... 5 · Configurable layout grid with fractional grids and grid snap. ... Editing tools - snap to grid, delete, cut, copy, paste, undo and redo, zoom and pan. ... Arrange your pattern by spacing in any two directions free from any square or rectangular tiling constraints.
http://www.cadro.com.au/hatchkit/hatchkit25-demo.zip - 1Mb - Download - Screenshot

WISCO Word Power
Create crossword puzzles and 14 more educational word games from your vocabulary words and definitions. Automatic generation of vocabulary bingo cards, word searches, crossword puzzles, magic number squares, flash cards, matching and multiple choice quizzes, juggle words, fill-in-the-blank... BMP graphics, help letters, fit to one page, open or rectangular puzzle grids, help letters, word searches using words, clues, or first letters, and spell checker. ... Includes many optional features: saving activities/puzzles as .
http://www.wiscocomputing.com/files/wiword.exe - 1,010Kb - Download - Screenshot

DB Calc for Windows
Scientific calculator and function plotter. 10 constant memories, 1 cumulating memory. Nearly unlimited nesting of parenthesis. Automatic bracket completion Decimal, hexadecimal and binary entering and display. Precision adjustable. Recall of expressions already calculated. ... Plot functions: linear and logarithmic units, axis label, plot label, multiple plots in one plot window, number of grid lines may be changed, calculated expressions in all input fields, printer output, export to clipboard as metafile, zoom function, coordinate window shows function value at mouse position.
http://www.dirkbilland.de/DBCalc/dbwinc32e.exe - 1Mb - Download - Screenshot

PowerDraw
PowerDraw is a free drawing application which you can easily draw any type of drawing. PowerDraw is designed in between CAD and Desktop Publishing style so you can use the ease of DTP with the power of cad core. Using mouse actions or control methods to handle drawings. ... Making polar and rectangular figure arrays. ... Scaling, rotating, mirroring,skewing and flipping bitmaps. ... Inserting WMF/EMF files as editable objects. ... Inserting bitmaps or jpeg pictures to the drawing. ... Aligning the figures in any style.
http://www.tekhnelogos.com/demos/pdrawsetup.exe - 7Mb - Download - Screenshot

Tetorganizer
Tetorganizer is a real must have game for every tetris and arcade lover. It packs eighteen different tetris games in one and will bring great fun to your desktop. In all games in this game pack your goal is to keep the board from filling up as long as possible getting the highest score. ... You can play any of the described above games on three different grids - rectangular, hexagonal and triangular. ... Inlay - you cannot rotate a piece, but you can place a piece wherever you want. ... This game runs on any 32-bit Windows operating system (Win95/98, NT, ME, 2000, XP) and does not...
http://www.gameyard.com/tetorgan/torganizer.exe - 1Mb - Download - Screenshot

PowerCad 2D Component
PowerCAD technology is developed to provide the application programmers a reusable object library to develop CAD modules for their applications easily. With the PowerCad component you can make a 2D CAD editor with almost no code. With its easy interface, you can handle all drawing needs in your... Making polar and rectangular figure arrays. ... Aligning the figures in any style. ... Scaling, rotating, mirroring,skewing and flipping bitmaps. ... Inserting bitmaps or jpeg pictures to the drawing. ... ) Rotating, scaling and mirroring the figures.
http://www.tekhnelogos.com/demos/PCVCLD7D.EXE - 13Mb - Download - Screenshot

XMLFox Advance XML/XSD Editor
Graphical XML editing and validation tool XMLFox Advance is XML/XSD editor for creating valid well-formed XML documents and/or XSD Schema. XMLFox Advance XML/XSD editor is the Windows based graphical tool for authoring, updating, exploring, well-formedness checking or validating XML documents. ... XMLFox Advance Editor is a delimiter-aware XML data editor with markup-aware cut-and-paste operations, undo, rectangular selection, clear diagnostics and other innovative attractive tools to handle common XML/XSD editing tasks.
http://www.rustemsoft.com/XMLFoxAdvance.zip - 0b - Download - Screenshot

Siberix PDF Library
Siberix PDF Library is a pure C# component for . NET designed to create industry standard PDF files. It provides a variety of methods to format text, create complex layouts, draw geometric figures and paths, insert images and other objects. Features: - Easy to use IGraphics interface (similar to... 0, 1. ... 1 or 2. ... NET Framework 1. ... 0, Windows 2000, Windows XP - .
http://www.siberix.com/pdf/downloads/pdf_library.zip - 592Kb - Download