Re: [R] double integral

From: Thomas Lumley <>
Date: Sat 06 May 2006 - 00:27:05 EST

On Fri, 5 May 2006, Dominique Katshunga wrote:

> Dear r-users,
> Is there any command in R allowing to evaluate a double integral? for
> instance let say I want to evaluate the following integral:
> integrate[lo=(0,1),up=(2,3)] f(x,y)=x^2+y^2
> where lo is the vector of lower bounds and up that of upper bounds.
> I thaught the function "adapt" would work but it did not.

Works for me:

> library(adapt)
> help(adapt)
> adapt(2,c(0,2),c(1,3),functn=function(xy) xy[1]^2+xy[2]^2)

        value       relerr       minpts       lenwrk        ifail
     6.666667 7.315578e-08          165           73            0


______________________________________________ mailing list PLEASE do read the posting guide! Received on Sat May 06 00:34:39 2006

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.1.8, at Sat 06 May 2006 - 02:09:59 EST.

Mailing list information is available at Please read the posting guide before posting to the list.