π = 3 4 3 + 24 ∫ 0 1 / 4 x − x 2 d x {\displaystyle \pi ={\frac {3}{4}}{\sqrt {3}}+24\int _{0}^{1/4}{{\sqrt {x-x^{2}}}dx}}
π = 4 3 3 + 24 ∫ 0 1 / 4 x − x 2 d x {\displaystyle \pi ={\frac {4}{3}}{\sqrt {3}}+24\int _{0}^{1/4}{{\sqrt {x-x^{2}}}dx}}
