
Fibonacci Spiral
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permission
via en.wikipedia.org/wiki/Golden_spiral and
en.wikipedia.org/wiki/Fibonacci_number
A Fibonacci spiral
starts with a rectangle partitioned into 2 squares. In each step, a square the
length of the rectangle's longest side is added to the rectangle. Since the
ratio between consecutive Fibonacci numbers approaches the golden ratio as the
Fibonacci numbers approach infinity, so too does this spiral get more similar
to the previous approximation as more squares are added.