All Hermetic Systems Software This page displays thumbnail images and descriptions for 16 of our programs (randomly ordered). Click on a title or a thumbnail image for more information.
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Equinoxes, Solstices and Cross‑Quarter Days Software to calculate accurate dates and times for equinoxes, solstices and the Celtic cross-quarter days. The cross-quarter days are those midway between the equinoxes and solstices. Works for both the northern hemisphere and the southern.
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Date‑Time Calculator Software to perform conversion, addition and subtraction of dates and times.
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MD5 File Comparison A program to get the MD5 message digest of a file, and to compare the MD5 digests of two files.
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Search KWIC Concordance A program to scan a text file, an HTML file or an MS Word docx file, ignoring common words, to generate a KWIC (keywords-in-context) concordance (displaying all words in context). This can then be searched for words or word patterns.
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Celtic Festivals and Cross Quarter Dates A program to find the exact dates and times, and zodiac positions, of full moons and dark moons, lunar Celtic festivals (Imbolc, Beltane, Lughnasadh and Samhain), equinoxes and solstices, and solar cross-quarter days. Moreover, it can do this for any range of years between 1600 and 2099.
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Easy Date Converter Adds a number of days or months to a date, calculates the number of days between two dates (with or without weekend days), and converts among Common Era (Gregorian) dates, Julian dates, ISO 8601 Week dates, Hermetic Leap Week dates, Julian day numbers and day-in-year dates of the form yyyy-ddd. Bilingual: English and German
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Eclipses, Moon Phases and Seasons Displays (over a range of years) the exact dates and times of partial, annular and total solar eclipses, of partial, penumbral and total lunar eclipses, of phases of the Moon, and of solstices, equinoxes and the solar cross-quarter days.
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Prime Factors 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.
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Lunar Calendars and Eclipse Finder A program to search for eclipses (lunar, solar, total, annular and partial), 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: Meyer-Palmen Solilunar, Hermetic Lunar Week, etc.
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Hermetic Word Frequency Counter Advanced Scans one or more MS Word DOCX, text or text-like files (e.g. HTML and XML files) and counts the number of occurrences of different words or phrases (optionally with pattern matching). The words/phrases can be displayed alphabetically or by frequency. Works with text in most European languages. Optional file output for Excel.
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The Chinese Calendar: Dates of New Years, Dark Moons and Solar Terms A program for the study of the Chinese Calendar. It convert between dates in various Chinese calendars and dates in the Gregorian and Julian calendars, and (among other things) finds lunar new year dates and leap months for any year in the Chinese Calendar.
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Julian‑Gregorian‑Dee Date Calculator Converts between Julian, Gregorian, Dee and Dee-Cecil calendar dates in various formats, does date arithmetic, and calculates northern spring equinoxes using either mean or apparent solar time.
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Cryptosystem ME6 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 safeguards against user error.
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BCE‑BC‑AD‑CE Converter Converts between calendar dates in BCE, BC, AD and CE date formats, and adds/subtracts a number of days, weeks, months and years to/from a given date.
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Phrase Frequency Counter Advanced Scans one or more MS Word DOCX, text or text-like files (e.g. HTML and XML files) and counts the number of occurrences of different phrases (of a user-specified size). The phrases found can be displayed alphabetically or by frequency, and can be searched. Works with text in most European languages. Optional file output for Excel.
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Hermetic Word Frequency Counter This software scans a text file, a HTML file, an XML file or a Word DOCX file and counts the frequencies of different words. The words which are found and displayed can be ordered alphabetically or by frequency. There is no limit on the size of an input text file. Results can be written to a file and can be read into Excel for further processing.
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