Analysis of information sources in references of the Wikipedia article "Square root of 6" in English language version.
Dynamic Symmetry root rectangles.
In the octahedron whose diameter is 2, the linear edge equals the square root of 6.
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: CS1 maint: location missing publisher (link)The continued fraction of √6 is [2; 2, 4], and the table of convergents below suggests (and it is true) that every other convergent provides a solution to x2 − 6y2 = 1.