TeX:
\sum_{n=-\infty}^{\infty} \operatorname{sinc}^{3}\!\left(n\right) = \frac{3 \pi}{4}Definitions:
| Fungrim symbol | Notation | Short description |
|---|---|---|
| Sum | Sum | |
| Pow | Power | |
| Sinc | Sinc function | |
| Infinity | Positive infinity | |
| Pi | The constant pi (3.14...) |
Source code for this entry:
Entry(ID("8814ad"),
Formula(Equal(Sum(Pow(Sinc(n), 3), For(n, Neg(Infinity), Infinity)), Div(Mul(3, Pi), 4))))