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Hermetic Systems software
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Adds a number of days to a date, calculates the number of days between two dates, and converts among Gregorian dates, Julian dates, Julian day numbers and ordinal dates of the form yyyyddd. Supports batch computation.
A program for the encryption and decryption of single or multiple files for secure storage or transmission. It uses a symmetric key encryption method with a 500-bit key for security, and has numerous safeguar
A program for converting between BMP, GIF, JPG and PNG graphics files. Allows single or multiple (batch) file conversion. Converted files displayed in browser.
A web authoring tool which 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. Customizable operation
This program (six tools in one) provides an easy way to create HTML code from lists and tables in textfiles, and to convert data in textfiles to full HTML documents. Includes an interactive TABLE creator whi
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.
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 calendars.
Ssoftware for exploring five cellular automata: q-state Life, the Belousov-Zhabotinsky Reaction, Togetherness, Viral Replication and Diffusion-Limited Aggregation
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.
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. The words which are found and displayed can be ordered alphabetically or by frequency
