lineline
alessandra frisan
lineline
sezione aurea
1 + Φ = 1 + φ + φ2 + .... + φn + ... =
1 + (φ + φ2) + (φ3 + φ4) + ... =
1 + (1 + φ) φ + (1 + φ) φ3 + ... =
1 + (1 + φ) (φ + φ3 + φ5 + ...) =
1 + Φ