pub const RK4_CASE1_DATA: [[f64; 2]; 67] = [
[-0.2000, 0.1000],
[-0.1909, 0.0812],
[-0.1837, 0.0632],
[-0.1783, 0.0457],
[-0.1746, 0.0286],
[-0.1726, 0.0118],
[-0.1722, -0.0050],
[-0.1736, -0.0217],
[-0.1766, -0.0387],
[-0.1813, -0.0560],
[-0.1878, -0.0738],
[-0.1961, -0.0923],
[-0.2063, -0.1116],
[-0.2184, -0.1318],
[-0.2327, -0.1532],
[-0.2491, -0.1759],
[-0.2679, -0.2000],
[-0.2892, -0.2257],
[-0.3131, -0.2530],
[-0.3399, -0.2822],
[-0.3696, -0.3132],
[-0.4026, -0.3460],
[-0.4389, -0.3806],
[-0.4787, -0.4168],
[-0.5223, -0.4543],
[-0.5696, -0.4926],
[-0.6208, -0.5310],
[-0.6758, -0.5685],
[-0.7344, -0.6039],
[-0.7964, -0.6356],
[-0.8613, -0.6614],
[-0.9284, -0.6792],
[-0.9968, -0.6861],
[-1.0652, -0.6795],
[-1.1322, -0.6566],
[-1.1959, -0.6150],
[-1.2545, -0.5534],
[-1.3059, -0.4712],
[-1.3481, -0.3698],
[-1.3793, -0.2521],
[-1.3981, -0.1226],
[-1.4036, 0.0128],
[-1.3956, 0.1475],
[-1.3744, 0.2752],
[-1.3410, 0.3902],
[-1.2969, 0.4881],
[-1.2440, 0.5665],
[-1.1843, 0.6243],
[-1.1198, 0.6622],
[-1.0525, 0.6819],
[-0.9840, 0.6858],
[-0.9157, 0.6766],
[-0.8490, 0.6571],
[-0.7846, 0.6300],
[-0.7232, 0.5975],
[-0.6652, 0.5616],
[-0.6109, 0.5238],
[-0.5605, 0.4854],
[-0.5138, 0.4472],
[-0.4710, 0.4099],
[-0.4318, 0.3740],
[-0.3961, 0.3397],
[-0.3638, 0.3072],
[-0.3346, 0.2766],
[-0.3084, 0.2478],
[-0.2850, 0.2207],
[-0.2850, 0.2207],
];