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Table 3 Curvatures of \(r(x,t)\) surface at node points

From: Solutions of the fractional combined KdV–mKdV equation with collocation method using radial basis function and their geometrical obstructions

Node points Mean curvature Gauss curvature
x = 0 −0.00423076 −0.0000174161
x = 0.1 −0.0142516 −0.000039501
x = 0.2 −0.034402 −0.0000723291
x = 0.3 −0.0699955 −0.000119721
x = 0.4 −0.130085 −0.000190356
x = 0.5 −0.233077 −0.000304767
x = 0.6 −0.423579 −0.000517959
x = 0.7 −0.838338 −0.00101754
x = 0.8 −2.11606 −0.00283336
x = 0.9 −14.4824 −0.0304277
x  = 0.94 −1408.05 −12.6644
x = 1 −19.2403 0.0148218