Definition:Golden Mean/Also known as
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Golden Mean: Also known as
The golden mean is also known as the golden ratio or golden section.
Euclid called it the extreme and mean ratio.
The Renaissance artists called it the divine proportion.
The notation for the golden mean is not universally standardised.
In much professional literature, $\tau$ (tau) is used, for the Greek tome for cut.
$\phi$ (phi), which has generally tended to appear more in amateur publications, appears to be becoming more widely used.
Sources
- 1997: Donald E. Knuth: The Art of Computer Programming: Volume 1: Fundamental Algorithms (3rd ed.) ... (previous) ... (next): $\S 1.2.8$: Fibonacci Numbers
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): golden section
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): golden section
- 2008: Ian Stewart: Taming the Infinite ... (previous) ... (next): Chapter $2$: The Logic of Shape: The golden mean