• Rust

fn hypot(x:f64, y:f64)-> f64 {
    let num = x.powi(2) + y.powi(2);
    num.powf(0.5)
}

• Rust

let h = x.hypot(y);

• C++

auto h = std::hypot(x, y);

• C#

double hypo(double x, double y)
{
    return Math.Sqrt(Math.Pow(x, 2) + Math.Pow(y, 2));
}

• Dart

var h = sqrt(x * x + y * y);

• Elixir

def sq(x) do
  x*x
end

def hypo(a,b) do
  sqrt(sq(a) + sq(b))
end

• Fortran

h = hypot(x,y)

• Go

h := math.Hypot(x, y)

• Haskell

hypo x y = sqrt $ x**2 + y**2

• JS

var h = Math.sqrt(x*x + y*y);

• JS

const h = Math.hypot(x, y);

• Java

double h = sqrt((x * x) + (y * y));

• Java

return double h = Math.sqrt(Math.pow(x,2)+Math.pow(y,2));

• Java

BigDecimal X = new BigDecimal(x).pow(2),
           Y = new BigDecimal(y).pow(2),
           h = X.add(Y).sqrt(DECIMAL128);

• Java

double h = hypot(x, y);

• Lua

local h = math.sqrt(x^2 + y^2)

• Lua

local h=(x^2+y^2)^0.5

• PHP

$h = hypot($x, $y)

// before PHP 4.1
$h = sqrt($x*$x + $y*$y);

• Pascal

h := hypot(x,y);

• Perl

my $h = hypot $x, $y;

• Python

h = math.hypot(x, y)

• Ruby

h = hypot(x, y)