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单词 BrahmaguptasFormula
释义

Brahmagupta’s formula


If a cyclic quadrilateralMathworldPlanetmath has sides p,q,r,s then its area is given by

(T-p)(T-q)(T-r)(T-s)

where T=p+q+r+s2.

Note that if s0, Heron’s formula is recovered.

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更新时间:2025/5/5 2:07:53