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Easy Graphics File Converter
by Hermetic Systems
A program for converting between BMP, GIF, JPG and PNG graphics files. Has two modes of operation: (i) A single file can be converted to all other formats (except GIF) in one operation. (ii) In batch mode any number of files in a folder can be converted from one format to another (except GIF).
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Cryptosystem ME6
by Hermetic Systems
Cryptosystem ME6 is a program for the encryption and decryption of single files or multiple files (in multiple folders) for secure storage or transmission. It uses a symmetric key encryption method with a 500-bit key for security, and has numerous safeguards against possible user error.
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Lunar Calendars and Eclipse Finder
by Hermetic Systems
A program to search for eclipses (lunar, solar, total, annual and umbral), to calculate the phase of the Moon at any given date and time and to convert between dates in the Gregorian and Julian calendars and dates in various lunar calendar (Goddess, Meyer-Palmen and Liberalia Triday).
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Prime Number Spiral
by Hermetic Systems
The Prime Number Spiral (a.k.a. the Ulam Spiral) is formed by marking the prime numbers in a spiral arrangement of the natural numbers. This is software is for exploring the Prime Number Spiral. Demo is free. Single user license costs US$15. After purchase of a user license an activation key is sent by email to make the software fully functional.
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Chinese Calendrics
by Hermetic Systems
A program to convert between dates in various Chinese calendars and dates in the Gregorian and Julian calendars, and to find lunar new year's day and leap months for any year. Supports 60-year and 60-day cycles, includes Chinese names, and allows searching for dates and times of full moons, dark moons, solar terms, equinoxes, solstices and more.
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Easy Date Converter
by Hermetic Systems
Does date arithmetic (adds a number of days to a date and calculates the number of days between two dates) and converts among Gregorian dates, Julian dates, Annus Novus dates, Julian day numbers and day-in-year dates of the form yyyyddd. Designed for easy performance of date calculations. Program is trilingual: English, German and Spanish.
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Keywords Meta Tag Generator
by Hermetic Systems
This program acts on an HTML document, counting the number of occurrences of words and how they are used, and produces an appropriate keywords meta tag for the document. It ignores common words such as 'this' and the resulting keywords meta tag depends on user-specified weights assigned to boldface words, words within headings, etc. It can be used with documents which use cascading style sheets or which have lots of embedded javascript.
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Hermetic Word Frequency Counter
by Hermetic Systems
This software scans a file, or text on the clipboard, and counts the number of occurrences of the different words. The text can be in a language other than English and can be a program code. The words which are found and displayed can be ordered alphabetically or by frequency. There is no limit on the size of an input file. The manner in which words are counted can be customized. Can be used with XML files. Results can be written to a file.
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Data Destroyer
by Hermetic Systems
A program for secure file deletion which destroys (or purges, by overwriting) data in files on floppy, ZIP or hard disk so that the data cannot be recovered. A single file can be purged or, in batch mode, multiple files (in multiple folders) can be purged in one operation. Allows user-specifiable type of purge. Program can also purge unused clusters or all data on a disk. Purge speed can be tested for accurate estimation of purge times.
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Factorizer
by Hermetic Systems
A program to find all factors of any positive integer less than 2^31 - 2, to decompose numbers into their prime constituents, to find prime numbers and pairs of primes, and to plot Erdos-Kac and Palmen Color histograms.
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