TeX:
\varphi = \frac{1}{5} {\left(\frac{\eta(i)}{\eta\!\left(5 i\right)}\right)}^{2}Definitions:
| Fungrim symbol | Notation | Short description |
|---|---|---|
| GoldenRatio | The golden ratio (1.618...) | |
| Pow | Power | |
| DedekindEta | Dedekind eta function | |
| ConstI | Imaginary unit |
Source code for this entry:
Entry(ID("e9a269"),
Formula(Equal(GoldenRatio, Mul(Div(1, 5), Pow(Div(DedekindEta(ConstI), DedekindEta(Mul(5, ConstI))), 2)))))