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A pattern of numbers that starts with 0 and 1 and is continued by adding the last two numbers in the pattern together.
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, and so on.
The Fibonacci pattern is related to the Golden Ratio. Dividing any Fibonacci number by the previous number in the sequence gives you a number approximate to the Golden Ratio, 1.6180339887.
The Golden Ratio, represented by the symbol φ, is an irrational mathematical constant equal to approximately 1.6180339887.
The golden section is a line divided based on the Golden Ratio.
A + B is to A as A is to B
In other words, A is φ times the length of B, and A+B is φ times the length of A.
The golden rectange is a rectangle created using the Golden Ratio. The measurements of the rectangle are 1 x φ.