User:Boostat/Sandbox From Wikipedia, the free encyclopedia The truely first Test This is a test page. A second test for equations f ( x ) = ∫ R d ∑ a ⊂ I Φ ( x a ) d x ∫ R d ∑ a ⊂ I Φ ( x a ) d x {\displaystyle f(x)={\frac {\int _{R^{d}}\sum \limits _{a\subset I}\Phi (x_{a})dx}{\int _{R^{d}}\sum \limits _{a\subset I}\Phi (x_{a})dx}}} Related Articles