WorksheetDivide[Minus[PI,μ],a]Divide[Sum[PI,Negative[μ]],a]WorksheetIndefiniteIntegral[Divide[Minus[PI,μ],a],a]Sum[Product[Sum[PI,Negative[μ]],LogE[Abs[a]]],&c]WorksheetDeriv[IndefiniteIntegral[Divide[Minus[PI,μ],a],a],a]Divide[Sum[PI,Negative[μ]],a]