TeX:
\left[ \frac{d^{2}}{{d x}^{2}} \operatorname{agm}\!\left(1, x\right) \right]_{x = 1} = -\frac{1}{8}Definitions:
| Fungrim symbol | Notation | Short description | 
|---|---|---|
| ComplexDerivative | Complex derivative | |
| AGM | Arithmetic-geometric mean | 
Source code for this entry:
Entry(ID("f178f2"),
    Formula(Equal(ComplexDerivative(AGM(1, x), For(x, 1, 2)), Neg(Div(1, 8)))))