Abstract
This numerical study presents the diagonal block method of order four for solving the second-order boundary value problems (BVPs) with Robin boundary conditions at two-point concurrently using constant step size. The solution is obtained directly without reducing to a system of first-order differential equations using a combination of predictor-corrector mode via shooting technique. The shooting method was adapted with the Newton divided difference interpolation approach as the strategy of seeking for the new initial estimate. Five numerical examples are included to examine and illustrate the practical usefulness of the proposed method. Numerical tested problem is also highlighted on the diffusion of heat generated application that imposed the Robin boundary conditions. The present findings revealed that the proposed method gives an efficient performance in terms of accuracy, total function calls, and execution time as compared with the existing method.
Highlights
This study is focusing on the numerical approach for solving second-order boundary value problems (BVPs) associated with Robin boundary conditions
We have extended the derivation in [11] to obtain the formulation of direct integration for solving second-order differential equations
This study has presented a diagonal two-point block method formula of order four to solve directly the linear and nonlinear second-order Robin boundary conditions
Summary
This study is focusing on the numerical approach for solving second-order boundary value problems (BVPs) associated with Robin boundary conditions. This type of BVPs is given as follows: y (x) = f (x, y, y) for a ≤ x ≤ b (1). Solving second-order ordinary differential equations using diagonal block method has been discussed in [13]. In [11], the author has derived the diagonal block method using Lagrange interpolation polynomial for solving first-order ordinary differential equations.
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