Varphi frac 1 sqrt 5 2 July 8, 2019 16 32 64 128 Varphi frac 1 + sqrt 5 2 Varphi frac 1 + sqrt 5 2 approx 1.618 Frac 1+ sqrt 5 2 2 1+ 5 $ frac 1 2 $ Frac 1- sqrt 5 2+ sqrt 5 2+51−5
