'That equation is a real Enigma !' Rare handwritten papers by Alan Turing (fwd)

11 April 2015

'That equation is a real Enigma !' Rare handwritten papers by Alan Turing 
set to fetch $1million at auction reveal some maths completely baffled the 
code-breaking genius

- 56-page book contains Turing's thoughts on tricky 'Leibniz notation 
  dx/dy'
- It was written at the Bletchley Park code-breaking headquarters in 
  1942
- Only extensive Turing manuscript thought to exist, the auctioneer said
- It will be sold by an anonymous seller by Bonhams in New York on 
  Monday

By Lydia Willgress for MailOnline and Daily Mail Reporter

A handwritten notebook in which Britain's Enigma machine genius Alan 
Turing admits he is baffled by an equation could fetch up to $1million 
( £690,000 ).

The 56-page book bought in Cambridge contains Turing's thoughts on the 
clearly tricky 'Leibniz notation dx/dy'.

'I find [it] extremely difficult to understand in spite of it having been 
the one I understood the best once !' he wrote...../snip/


Read more : 
http://www.dailymail.co.uk/news/article-3034334/Alan-Turing-s-notebook-set-fetch-1million-Rare-handwritten-papers-reveal-equations-completely-baffled-Enigma-machine-genius.html

http://www.bonhams.com/press_release/18431/