Hi, I'm trying to get the perl module PDL::GSLSF::GAMMA working but am having some difficulty. As I understand it, the function "gsl_sf_gamma" should return the gamma function "Gamma(x)". For example, in R: 
> gamma(0.4)
[1] 2.21816

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However, I can't seem to replicate this using PDL: 
#!/usr/bin/perl
use PDL; 
use PDL::GSLSF::GAMMA;
my $out = gsl_sf_gamma(0.4);
print "$out\n";

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Output is "1.63493983016443e-14". I'm clearly doing something wrong, please excuse my ignorance. Any help greatly appreciated.

In reply to Using PDL::GSLSF::GAMMA by wannymahoots

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