atan(2−1)=8π
TeX:
\operatorname{atan}\!\left(\sqrt{2} - 1\right) = \frac{\pi}{8}Definitions:
| Fungrim symbol | Notation | Short description |
|---|
| Atan | atan(z)
| Inverse tangent |
| Sqrt | z
| Principal square root |
| Pi | π
| The constant pi (3.14...) |
Source code for this entry:
Entry(ID("a9ecff"),
Formula(Equal(Atan(Sub(Sqrt(2), 1)), Div(Pi, 8))))