TeX:
\sin\!\left(\frac{\pi}{2} + \pi k\right) = {\left(-1\right)}^{k}Definitions:
| Fungrim symbol | Notation | Short description |
|---|---|---|
| Sin | Sine | |
| ConstPi | The constant pi (3.14...) | |
| Pow | Power | |
| ZZ | Integers |
Source code for this entry:
Entry(ID("506d0c"),
Formula(Equal(Sin(Add(Div(ConstPi, 2), Mul(ConstPi, k))), Pow(-1, k))),
Variables(k),
Element(k, ZZ))