本文主要是介绍Pi, Phi(黄金比例) and Fibonacci(斐波纳契数)，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
info:https://www.goldennumber.net/pi-phi-fibonacci/
from: https://www.zhihu.com/question/28062458
golden mean:https://static1.squarespace.com/static/523a572be4b0bea71219be32/t/530d43a3e4b046c4d2bc85af/1393378211978/SK_GoldenMean.pdf
Fibonacci 通项公式:
Fibonacci Heap 是计算机算法中最小堆有序树的集合Decrease-keyO(1)，相比比二项堆O(lgn)进步巨大.
Golden mean:The golden mean is a ratio that is based off the number phi, (1.61803398874). This ratio is commonly found throughout design, architecture and nature. It is a valued design relationship that allows the content in any medium to be proportionally supported by one another.
The graphic on the down is a visual reference to the golden mean ratio. It is based off the integer sequence: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144…. Design layouts that use the golden mean as a basis grid show content in a natural and pleasing way.
黄金比例
黄金分割奇妙之处，在于其倒数为自身减1，即：1.618...的倒数为{\displaystyle 0.618\ldots =1.618\ldots -1}
看看这里有趣的描述：https://www.shuxuele.com/numbers/nature-golden-ratio-fibonacci.html
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