Page:Test affichage.djvu/19

${\begin{array}{rll}{\frac {\varpi }{4}}&=+{\frac {5}{1.2.3}}&=+0{,}833333333\\&-{\frac {1}{4^{1}}}.{\frac {46}{5.6.7}}&=\ldots \ldots \ldots \ldots \ldots -0{,}054761905\\&+{\frac {1}{4^{2}}}.{\frac {127}{9.10.11}}&=+0{,}008017677\\&-{\frac {1}{4^{3}}}.{\frac {248}{13.14.15}}&=\ldots \ldots \ldots \ldots \ldots -0{,}001419414\\&+{\frac {1}{4^{4}}}.{\frac {409}{17.18.19}}&=+0{,}000274795\\&-{\frac {1}{4^{5}}}.{\frac {610}{21.22.23}}&=\ldots \ldots \ldots \ldots \ldots -0{,}000056061\\\end{array}}$