Hello digiflux, thanks for putting this interesting mathematics on the internet.
I agree that Fermat could have been onto something...
Here is a quote from the paper at
www.fermatproof.com :
To begin, a model for squared numbers will be introduced and used to devise a method to create all Pythagorean (x^2 + y^2 = z^2) relationships. Equations will be derived from this process which indicate the existence of a Pythagorean equation in the model for squared numbers.
A model for higher powers of "n" will then be introduced. This model will be an extension of the model for squared numbers. Simple manipulations of this model will show that the "end game" packaging of quantities postulated to be x^n and y^n into spaces known to be x^n and yn requires that x, y, and z form a Pythagorean equation ! This is totally incompatible with the postulation that x^n + y^n = z^n where n >2.
The proof is thus Reductio ad Absurdum. . The recogniton of the afore-mentioned equations in the packaging process is the essence of the proof.
So far, so good. The generalized Pythagorean equation is this:
[a^2 - b^2]^2 + [2*a*b]^2 = [a^2 + b^2]^2
All odd numbers, 2x+1, can be represented as a^2 - b^2
[x+1]^2 - x^2
x^2 + 2x +1 - x^2 = 2x+1
The equation [a^2-b^2]^2 + [2*a*b]^2 = [a^2 + b^2]^2 generates all Pythagorean triples, but it is not the only one that does. There are other expressions and relations that can generate all Pythagorean triples, for example:
An infinite stack of predictable algebraic expressions to generate
positive integer solutions for the Pythagorean Theorem.
a b c
4n(n+1)-3 , 4(2n+1) , 4n(n+1)+5
4n(n+2)-5 , 4(3n+3) , 4n(n+2)+13
4n(n+3)-7 , 4(4n+6) , 4n(n+3)+25
4n(n+4)-9 , 4(5n+10) , 4n(n+4)+41
etc. etc. etc.
a^2 + b^2 = c^2
Very interesting at
www.fermatproof.com
...
2[5*1] + 1^2 = 11
2[5*1] + 2[5]^2 = 60
2[5*1] + 2[5*1]^2 + 1 = 61
A + B = C
2A + 2B + 1 = 2C + 1
11^2 + 60^2 = 61^2
3 = 2^2 - 1^2
3^2 = 5^2 - 4^2
3^3 = 14^2 - 13^2
3^4 = 41^2 - 40^2 = 9^2
3^p = A^2 - B^2
[2x+1]^p = A^2 - B^2