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checkdigit calculation for HP-17b
07-27-2015, 04:11 PM
Post: #13
RE: checkdigit calculation for HP-17b
(07-26-2015 04:45 PM)Thomas Klemm Wrote:  Have these mechanical computers for verifying numbers in Luhn's patent ever been produced?
[Image: US2950048-0.png]

I'm quite sure, you can find these little "computers" in the collection of the "Arithmeum",
a Museum for "Calculating in olden and modern times" in Bonn, Germany.

I've been there last Friday and it was amazing.

Hartmut (from Monheim am Rhein, Germany, near Bonn)
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RE: checkdigit calculation for HP-17b - wynen - 07-27-2015 04:11 PM



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