Now it has just been proved, - that a circle is equal to the rectangle contained by its circumference and half its radius ; and ... To square the circle, therefore, is to find, the circumference when the radius is given ; and for effecting this, it is enough to know the ratio of the circumference to ... to the number above designated by v j and the simplicity of this first approximation has brought it into very general use.

Title | : | Encyclopaedia of pure mathematics |

Author | : | Peter Barlow, George Peacock, Dionysius Lardner, Sir George Biddell Airy, H. P. Hamilton, A. Levy, Augustus DeMorgan, Henry Mosley |

Publisher | : | - 1847 |

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