Talk:Pythagorean prime

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Significance[edit]

Is this a significant concept? I find essentially no support for the name "Pythagorean prime" for "prime which is 1 modulo 4" in the literature. The article is a few random remarks about such primes, without sources. Deltahedron (talk) 19:38, 24 August 2012 (UTC)

The image is wrong, the second triangle should have z = 5 . 146.199.37.62 (talk) 16:46, 15 April 2015 (UTC)

Are you saying that z should equal both sqrt(5) (as it says on the left side) and 5 (what you claim it should be on the right side)? That would be a strange new kind of math where variables can have two different values at the same time. The illustration is supposed to describe the formula by which a triple (x,y,z) describing a right triangle with two integer sides x, y, and irrational side z can be transformed into a different right triangle with integer sides and hypotenuse z2, but maybe the caption can be made more clear. —David Eppstein (talk) 18:11, 15 April 2015 (UTC)
For pedagogical reasons, the image (at least) should use a,b,c as the conventional Pythagorean triple instead of x,y,z. Anjoe (talk) 09:26, 5 June 2017 (UTC)