Starting Order Seven Method Accurately for the Solution of First Initial Value Problems of First Order Ordinary Differential Equations

Adewale A. James, Olaide A. Adesanya, Kolawole M. Fasasi


In this paper, we developed an order seven linear multistep method, which is implemented in predictor corrector-method. The corrector is developed by method of collocation and interpolation of power series, approximate solutions at some selected grid points, to give a continuous linear multistep method, which is evaluated at some selected grid points to give a discrete linear multistep method of order seven. The predictors were also developed by method of collocation and interpolation of power series approximate solution, to give a continuous linear multistep method. The continuous linear multistep method is then solved for the independent solution to give a continuous block formula, which is evaluated at some selected grid points to give discrete block method. Basic properties of the corrector was investigated and found to be zero stable, consistent and convergent. The efficiency of the method was tested on some numerical experiments and found to compare favorably with the existing methods.


Predictor; Corrector; Collocation; Interpolation; Approximate solution; Independent solution; Zero stable; Consistent; Convergent

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