happyapple0708 我的代码如下 > integrand<-function(x) + { + abs(x)*(3.14*(1+x^2))^(-1) + } > integrate(integrand, lower=-Inf, upper=Inf) Er maximum number of subdivisions reached 下面这是反馈的问题, 我定义subdivisions 等于 5依旧回馈这个问题,有没有解决的办法?
papillon https://www.wolframalpha.com/input/?i=integral+from+-inf+to+inf+abs%28x%29*%283.14*%281%2Bx%5E2%29%29%5E%28-1%29