PeterJockisch.de
Document integrity: “Practical Application of Cryptographic Checksums”, with an introduction to applied cryptography.
Referenced in:
“Künstliche Intelligenz - Ethik und Recht”,
Hoeren/Pinelli (Hrsg.), 2022,
footnote 49 on page 11,
Verlag C.H. Beck,
(book review by Roland Kemper) •
“M2M-Geschäfte, Vertragsschluss und vertragliche Strukturen im automatisierten E-Procurement”,
Dajana Mohr, Tectum Verlag 2022,
footnote 283 on page 72,
PDF sample •
German legal magazine JuristenZeitung, 18.09.2020, “Daten im Rechtsverkehr – Überlegungen für ein allgemeines Datenvertragsrecht” (footnote 14, page 881), Thomas Hoeren and Stefean Pinelli,
Verlag Mohr Siebeck •
Wikipedia article “Checksum” (EN) •
Wikipedia article “Prüfsumme” •
Google.com Top 10 (EN) •
Google.de Top 10 •
Bing.com Top 10
Scientific typesetting: “Free Typesetting Software for the Professional Document Preparation”
Google.de Top 10 •
Google.com Top 10 (EN)
Introduction to the indirect proof:
“Proof of the Irrationality of the Square Root of 2”
Google.de Top 10 •
Google.com Top 10 (EN)
Mathematical proofs are used to prove the correctness of formulas and assumed facts. Several basic procedures and ways of verifying mathematical correctness are in use, all of which follow a fixed scheme.
For the proof of the irrationality of the square root of 2 different proofs exist. This article explains the indirect proof variant in detail and introduces one of the possible short spellings in mathematical notation. Exercises with solutions consolidate what has been learned. 12 pages::
A4 • A4 duplex • US-Letter • US-Letter duplex
School mathematics: Detailed solutions to the first 27 text problems of “A first book in Algebra”, author Wallace C. Boyden, added, a textbook for beginners in algebra: Text problems with solutions, 10 pages (PDF, A4 format, in English)..
Web book in five chapters, for self-study of a language::
“Study of Languages with Computer and Internet”.
German version: “Sprachstudium mit Computer und Weltnetz”
Referenced in:
Omniglot
the online encyclopedia of writing systems and languages •
The Kittiwake Trust Multilingual Library
Software equipment: “Introduction to Free Software and Operating Systems”
Existing computer works but is no longer fast enough for current software and operating systems? Use free, 100 % free of charge, continuously maintained and security updated specialized operating system distributions for new, for old and for ancient computers, article section:
“Modern operating systems for old computers”
Google.de Top 10
News Ticker:: “Keep up with the News with RSS Feed Readers”
Freiburg i.Br.:
“Freiburg Excursion Destinations and Film Recommendations”
Presents many of the most beautiful Youtube videos on excursion destinations in and around Freiburg.
Referenced in:
WP article “Freiburg im Breisgau” (EN) •
WP article “Fribourg-en-Brisgau” (FR)
Holistic reality structures described in film, TV and literature: „Inner Levels of Communication and Reality Structures“, contains many references to Youtube videos.
As of: February 16, 2023
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