TeX:
\psi'\!\left(\frac{3}{4}\right) = {\pi}^{2} - 8 GDefinitions:
| Fungrim symbol | Notation | Short description | 
|---|---|---|
| DigammaFunction | Digamma function | |
| Pow | Power | |
| Pi | The constant pi (3.14...) | |
| ConstCatalan | Catalan's constant | 
Source code for this entry:
Entry(ID("d2f9fb"),
    Formula(Equal(DigammaFunction(Div(3, 4), 1), Sub(Pow(Pi, 2), Mul(8, ConstCatalan)))))