Definition:Golden Mean/Geometrical Interpretation
Jump to navigation Jump to search
Let $\Box ADEB$ be a square.
Let $\Box ADFC$ be a rectangle such that:
- $AC : AD = AD : BC$
where $AC : AD$ denotes the ratio of $AC$ to $AD$.
Thus if $AC = \phi$ and $AD = 1$ we see that this reduces to:
- $\phi : 1 = 1 : \phi - 1$
where $\phi$ is the golden mean.