Function cube

web/js/algorithms.js:107–107

    const fx = a / 500 + fy;
    const fz = fy - b / 200;
    const cube = v => v ** 3 > 0.008856 ? v ** 3 : (v - 16 / 116) / 7.787037;
    const x = cube(fx) * 0.95047;
    const y = cube(fy) * 1.00000;
    const z = cube(fz) * 1.08883;