Fred Lunnon wrote:
I've come across a curious bug at http://en.wikipedia.org/wiki/Lagrange's_four-square_theorem in the section Proof using the Hurwitz integers where (under my browsers) one displayed formula terminates in the proud claim
" (1/4)^2 + (1/2)^2 + (1/2)^2 + (1/2)^2 = 15/16 < 1 . "
Why the fuss --- surely all I need to do is click the edit button to call up the source text, and correct the TeX. The latter certainly looks to be current --- it shows the same typo "consequense" (sic) on the following line --- but there the corresponding formula already reads correctly
" ... =\frac{13}{16}<1. "
I see the correct formula on the rendered web page as well as in the source. Perhaps you'd visited the page before and got a cached image? -- g