R Under development (unstable) (2023-11-08 r85496 ucrt) -- "Unsuffered Consequences"
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> ##
> ##  g a m m a z . R  Test suite
> ##
> 
> 
> gammaz <- pracma::gammaz
> 
> ##  Problematic on Solaris (2012-01-25)
> # y <- seq(from=0,to=5,by=0.5)
> # # z0 <- lngamma_complex(1+y*1i)
> # z0 <- c(0.0000000+0.0000000i, -0.1909455-0.2440583i, -0.6509232-0.3016403i,
> #        -1.2344831-0.1629398i, -1.8760788+0.1296463i, -2.5499068+0.5426044i,
> #        -3.2441443+1.0533508i, -3.9524671+1.6461926i, -4.6710996+2.3096981i,
> #        -5.3976062+3.0351970i, -6.1303241-2.4672867i)
> # 
> # all.equal(gammaz(1+y*1i), exp(z0), tolerance = 1e-7)
> 
> proc.time()
   user  system elapsed 
   0.14    0.01    0.15