portrait Karl Kleine Prof. Karl Kleine english 

retired professor of computer science

formerly teaching at Ernst-Abbe-Hochschule Jena, dept. Grund­lagen­wissen­schaften, nowadays engaged in research in the history of scientific and technical computing, in particular slide rules in many forms and other devices based on logarithms


news / announcements

  • This is a new web site under construction. So much of it is still missing or incomplete. Please check this web page again after a couple of days.

  • The proceedings of the 28. International meeting of researchers and collectors of slide rules and other historic computing devices (IM2021) will be completed in the near future. The availabilty of the book will be announced here, on the (conference web page) and by email to all conference participants.

about me

and a few other items which might interest you ...
  • my MathCards project

  • and a couple of other items ... — to be written later

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