# Differences

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archimedes_constant_π [2014/11/20 12:57] nikolaj |
archimedes_constant_π [2014/11/20 12:57] (current) nikolaj |
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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 $\mathbb E^2$. | 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 $\mathbb E^2$. | ||

- | * $\pi = 3.14159\dots$ | + | * $\pi = 3.14159\dots\approx \frac{22}{7}$ |

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- | * $\pi \approx \frac{22}{7}$ | + | |

=== Reference === | === Reference === |