Hello, there!
Basically my problem is very clear. I would like to take a
(numerical) integration of a function f(x,y) which can be quite complex of x
and y, over a disk (x-a)^2+(y-b)^2<= r^2 (with r constant). However, after some
search in R, I just cannot find a function in R that suits my purpose. Function
Integrate applies to one dimensional, and adaptIntegrate to rectangle. In my
case, it is not easy or simply impossible to transform the definition area to a
rectangle with constant boundaries. I must have missed something, but is
there any R function which can solve the integration without going to ex. Monto
Carlo? Many thanks in advance!
Best regards,
Yingfu
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