• ψ ≈ 137.5° ⪢⪢
#math
http://qindex.info/i.php?x=9465

• ψ ≈ 137.5° ⪢⪢
As angles smaller than 180° proved to be more handy in practice, the smaller of the resultant angles is usually called golden angle. #math
http://qindex.info/i.php?x=28243

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