Local Convexity-Preserving 𝐶² Rational Cubic Spline for Convex Data

Table 6

Numerical results of Figure 3(d).

𝑖	1	2	3	4	5	6	7
𝑑𝑖	−2.325	−1.644	−0.132	0	0.132	1.644	2.325
Δ𝑖	−2	−0.375	−0.062	0.062	0.375	2	—
𝑢𝑖	1.5	1.5	1.5	1.5	1.5	1.5	—
𝑣𝑖	1.5	1.5	1.5	1.5	1.5	1.5	—
𝑤𝑖	5.503	7.902	1.181	1.181	7.902	5.503	—