Software for astronomy, calendars and date conversion

C Code to HTML Converter 2.44 Click on the title for the full description US$19.95, €16.75 or £14.45 for a perpetual license or US$9.95, €8.45 or £7.25 for a 3‑month license
A program to convert a C or C++ source code file to an HTML source code file for display in a web browser.  Read more ...

Prime Factors 14.37 Click on the title for the full description US$19.95, €16.75 or £14.45 for a perpetual license or US$9.95, €8.45 or £7.25 for a 3‑month license
A program to find prime numbers and pairs of primes, to decompose numbers into their prime components, to find all factors of any positive integer up to 2,147,483,645, and to plot Erdos-Kac and Palmen Color histograms.  Read more ...   Top

Five Cellular Automata 11.44 Click on the title for the full description US$14.95, €12.45 or £9.95 for a perpetual license or US$7.45, €6.25 or £4.95 for a 3‑month license
Software for exploring five cellular automata: an extended version of Conway's Life, the Belousov-Zhabotinsky reaction, diffusion-limited aggregation and two others.  Read more ...   Top

These programs run under all versions of Windows from Windows XP to Windows 10. The freely downloadable trial versions can be made fully-functional by means of an activation key available upon purchase of a user license. Updates to new versions (if any) are free, as is tech support for the duration of the user license.
 
The developer of these programs is currently available for custom software development at an affordable rate.  If interested please leave a message here.

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