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Archimedes constant π
Set
The constant $\pi$ is defined as the volume of the disc of radius $1$, where the underlying metric space is taken to be the two dimensional Euclidean space $\mathbb E^2$:
| definiendum | $\pi:=V_2(1)$ |
Discussion
- $\pi = 3.14159\dots$
- $\pi \approx \frac{22}{7}$
Reference
Wikipedia: Pi,List of formulae involving π
Parents
Context
