R Under development (unstable) (2024-05-20 r86569 ucrt) -- "Unsuffered Consequences"
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> library("polyCub")
> 
> ### Regression tests
> 
> hexagon <- list(
+     list(x = c(7.33, 7.33, 3, -1.33, -1.33, 3),
+          y = c(-0.5, 4.5, 7, 4.5, -0.5, -3))
+ )
> f <- function (s) (rowSums(s^2)+1)^-2
> ##plotpolyf(hexagon, f)
> 
> ## isotropic cubature can handle control list for integrate()
> ## previously, passing control arguments did not work
> int1 <- polyCub.iso(hexagon, f, center=c(0,0), control=list(rel.tol=1e-3))
> int2 <- polyCub.iso(hexagon, f, center=c(0,0), control=list(rel.tol=1e-8))
> ## results are almost but not identical
> stopifnot(all.equal(int1, int2, tolerance = 1e-3),
+           !identical(int1, int2))
> 
> proc.time()
   user  system elapsed 
   0.32    0.15    0.45