Data.Colour.CIE:cieLAB from colour-2.3.3, C

Specification

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\[\begin{array}{l} \\ x + \frac{y}{500} \end{array} \]
(FPCore (x y) :precision binary64 (+ x (/ y 500.0)))
double code(double x, double y) {
	return x + (y / 500.0);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = x + (y / 500.0d0)
end function
public static double code(double x, double y) {
	return x + (y / 500.0);
}
def code(x, y):
	return x + (y / 500.0)
function code(x, y)
	return Float64(x + Float64(y / 500.0))
end
function tmp = code(x, y)
	tmp = x + (y / 500.0);
end
code[x_, y_] := N[(x + N[(y / 500.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + \frac{y}{500}
\end{array}

Cannot sample enough valid points. (more)