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Gamma function: Difference between revisions
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Adding Rust via Stirling method.
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2.0
2.7781584804376647
</pre>
=={{header|Rust}}==
====Stirling====
{{trans|AWK}}
<syntaxhighlight lang="rust">
use std::f64::consts;
fn main() {
let gamma = |x: f64| { assert_ne!(x, 0.0); (2.0*consts::PI/x).sqrt() * (x * (x/consts::E).ln()).exp()};
(1..=20).for_each(|x| {
let x = f64::from(x) / 10.0;
println!("{:.02} => {:.10}", x, gamma(x));
});
}
</syntaxhighlight>
{{out}}
<pre>
0.10 => 5.6971871490
0.20 => 3.3259984240
0.30 => 2.3625300363
0.40 => 1.8414763359
0.50 => 1.5203469011
0.60 => 1.3071588574
0.70 => 1.1590532921
0.80 => 1.0533709684
0.90 => 0.9770615079
1.00 => 0.9221370089
1.10 => 0.8834899532
1.20 => 0.8577553354
1.30 => 0.8426782594
1.40 => 0.8367445486
1.50 => 0.8389565525
1.60 => 0.8486932422
1.70 => 0.8656214718
1.80 => 0.8896396353
1.90 => 0.9208427219
2.00 => 0.9595021757
</pre>
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