sqrt(x - (1-s)^2 / 4)

(FPCore (x s) :precision binary64 (sqrt (- x (/ (pow (- 1.0 s) 2.0) 4.0))))

double code(double x, double s) {
	return sqrt((x - (pow((1.0 - s), 2.0) / 4.0)));
}

real(8) function code(x, s)
    real(8), intent (in) :: x
    real(8), intent (in) :: s
    code = sqrt((x - (((1.0d0 - s) ** 2.0d0) / 4.0d0)))
end function

public static double code(double x, double s) {
	return Math.sqrt((x - (Math.pow((1.0 - s), 2.0) / 4.0)));
}

def code(x, s):
	return math.sqrt((x - (math.pow((1.0 - s), 2.0) / 4.0)))

function code(x, s)
	return sqrt(Float64(x - Float64((Float64(1.0 - s) ^ 2.0) / 4.0)))
end

function tmp = code(x, s)
	tmp = sqrt((x - (((1.0 - s) ^ 2.0) / 4.0)));
end

code[x_, s_] := N[Sqrt[N[(x - N[(N[Power[N[(1.0 - s), $MachinePrecision], 2.0], $MachinePrecision] / 4.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]

\begin{array}{l}

\\
\sqrt{x - \frac{{\left(1 - s\right)}^{2}}{4}}
\end{array}