作者loser113 (洨大鲁蛇ㄍ)
看板R_Language
标题[问题] r 积分回传数值值
时间Fri Sep 12 01:25:09 2014
> integrand <- function(x) {1/((x+1)*sqrt(x))}
> a=integrate(integrand, lower = 0, upper = Inf);a
3.141593 with absolute error < 2.7e-05
我只要a=3.141593 还需要多加甚麽
--
※ 发信站: 批踢踢实业坊(ptt.cc), 来自: 140.113.128.201
※ 文章网址: http://webptt.com/cn.aspx?n=bbs/R_Language/M.1410456311.A.ACF.html
1F：→ Wush978: a$value 09/12 06:48
2F：→ loser113: thanks 09/12 08:39