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-   -   Origin of proof of irrationality of square root of two (http://mymathforum.com/math/343690-origin-proof-irrationality-square-root-two.html)

TheAbdicatedKing March 20th, 2018 07:53 AM

Origin of proof of irrationality of square root of two
 
What is the first known accepted proof of the irrationality of the square root of two or the n root of any prime preferably one that is attributed to someone?

greg1313 March 20th, 2018 08:06 AM

https://en.wikipedia.org/wiki/Square_root_of_2

Denis March 20th, 2018 08:37 AM

Greg, I saw at that site that a poor demented soul named
Ronald Watkins calculated it to 10 trillion digits in June 2016...

Using 8 digits per inch: 10,000,000,000 / (5280*12*8 ) = 19728.535353....
So the resulting number would be close to 20,000 miles long:eek:

studiot March 20th, 2018 09:16 AM

Hippasus.

https://en.wikipedia.org/wiki/Hippasus


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