Figure 1From: An efficient numerical approach for solving two-point fractional order nonlinear boundary value problems with Robin boundary conditionsPointwise absolute errors in maximum norm of Example 4.1 versus the time step h when \((\alpha _{1},\alpha _{2})=(0.9,1.1), (1.5,0.5), (1.9,0.1)\). Graphs demonstrate that computed convergence profiles are nearly \(\mathcal{O}(h^{2})\) and \(\mathcal{O}(h^{3})\) for Newton’s and Halley’s method, respectivelyBack to article page