sqrt C (should all be same)

No valid values. (more)

?

\[\sqrt{2 \cdot \left(x \cdot x\right)} \]
(FPCore (x) :precision binary64 (sqrt (* 2.0 (* x x))))
double code(double x) {
	return sqrt((2.0 * (x * x)));
}

real(8) function code(x)
    real(8), intent (in) :: x
    code = sqrt((2.0d0 * (x * x)))
end function

public static double code(double x) {
	return Math.sqrt((2.0 * (x * x)));
}

def code(x):
	return math.sqrt((2.0 * (x * x)))

function code(x)
	return sqrt(Float64(2.0 * Float64(x * x)))
end

function tmp = code(x)
	tmp = sqrt((2.0 * (x * x)));
end

code[x_] := N[Sqrt[N[(2.0 * N[(x * x), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]

\sqrt{2 \cdot \left(x \cdot x\right)}