Numbers around the world
The Book of Numbers seems to be doing extremely well around the world. Cassell Illustrated just informed me that it’s been sold to all these countries:
German - Primus
Dutch - Fontaine Uitgevers
Spanish - Editorial Paidos
French - Eyrolles
French Canadian - Reader's Digest
Japanese - Yu-Shokan
Korean - SKK University
Brazilian Portuguese - Larousse
Turkish - Domingo
So far I've only seen the UK, US and German versions so hopefully they'll mail some of these to me soon!
Hal (May 23, 2009 10:27 AM):
I saw this same mistake as well, and I believe the author had in mind altogether another problem Fermat had solved involving rational and irrational numbers.
David Pease (February 10, 2009 9:18 PM):
Page 71
You state that for the Pythagorean theorem of squares, Fermat had proven that if the values of a and b were rational numbers then c had to be irrational. But for right angled triangle sides 3 and 4 the hypotenuse is 5. 5 is not an irrational number. I have been attempting to find Fermat's proof for the case where n =2 and c had to be irrational but can not find it. Can you assist?