The golden ratio Lecture 3 Fibonacci Numbers and the Golden Ratio
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The classical definition of the golden ratio. Two positive numbers are said to be in the golden ratio if the ratio between the larger number and the smaller number is the same as the ratio between their sum and the larger number. Phi=(1+sqrt(5))/2 approx 1.618. • Join me on Coursera: https://imp.i384100.net/fibonacci-num... • Lecture notes at http://www.math.ust.hk/~machas/fibona... • Paperback at https://www.amazon.com/Fibonacci-Numb... • Subscribe to my channel: http://www.youtube.com/user/jchasnov?...
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