Difference between revisions of "Golden Ratio"
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It has been observed that the golden ratio is evident in the arrangement of branches along the stems of plants, and of veins in leaves. | It has been observed that the golden ratio is evident in the arrangement of branches along the stems of plants, and of veins in leaves. | ||
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Revision as of 15:46, April 3, 2007
The golden ratio is a number, commonly known as phi (<math>\varphi</math>), defined as <math>\varphi^2 = \varphi + 1</math>. The value of phi is
- <math>\frac{1 + \sqrt{5}}{2}</math>
Phi is an irrational number. In decimal form it is often written
- 1.618...
It has been observed that the golden ratio is evident in the arrangement of branches along the stems of plants, and of veins in leaves.