SeventhSigma Messages 256 Reaction score 0 Thread starter Nov 27, 2011 #1 Given http://en.wikipedia.org/wiki/Pythagorean_quadruple it shows how to get primitive solutions, but what if I want even solutions that don't have coprime a, b, c, d?
Given http://en.wikipedia.org/wiki/Pythagorean_quadruple it shows how to get primitive solutions, but what if I want even solutions that don't have coprime a, b, c, d?
Borek Mentor Messages 29,212 Reaction score 4,642 Nov 28, 2011 #2 If (a,b,c,d) is a Pythagorean quadruple, what can you say about (2a,2b,2c,2d)?