R Under development (unstable) (2023-11-25 r85635 ucrt) -- "Unsuffered Consequences"
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> ghypInversionTestpq <- function(ps, intTol = .Machine$double.eps^0.25,
+                                 uniTol = .Machine$double.eps^0.25,
+                                 method = "spline", ...)
+ {
+     qpps <- qghyp(pghyp(ps, intTol = intTol, ...), uniTol = uniTol,
+                  method = method, ...)
+     diffs <- qpps - ps
+     result <- list(qpps = qpps, ps = ps, diffs = diffs)
+ 
+     return(result)
+ }
> 
> ghypInversionTestqp <- function(qs, intTol = .Machine$double.eps^0.25,
+                                 uniTol = .Machine$double.eps^0.25,
+                                 method = "spline", ...)
+ {
+     pqqs <- pghyp(qghyp(qs, uniTol = uniTol, method = method, ...),
+                   intTol = intTol, ...)
+     diffs <- pqqs - qs
+     result <- list(pqqs = pqqs, qs = qs, diffs = diffs)
+ 
+     return(result)
+ }
> 
> proc.time()
   user  system elapsed 
   0.12    0.03    0.14