R Under development (unstable) (2026-01-08 r89292 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(itp)
> 
> test_check("itp")
function: wiki 
      root     f(root)  iterations  
     1.521   2.657e-12           7  
function: wiki 
      root     f(root)  iterations           a           b         f.a  
     1.521   2.657e-12           7       1.521       1.521  -1.184e-12  
       f.b   precision  
 6.496e-12    6.46e-13  
[ FAIL 0 | WARN 0 | SKIP 0 | PASS 91 ]
> 
> proc.time()
   user  system elapsed 
   2.18    0.53    2.71