AN EFFICIENT BLOCK SOLVER OF TRIGONOMETRICALLY FITTED METHOD FOR STIFF ODEs
Keywords:
block solver, trigonometrically fitted method, stiff ODEs, tolerance level, suited varying step size.DOI:
https://doi.org/10.17654/0974324322025Abstract
An efficient block solver of trigonometrically fitted method for stiff ODEs has been developed. This block solver utilizes a special trigonometrically fitted method as the basis function approximation with the introduction of varying step, varying order and suitably varying step size. The idea of interpolation and collocation is utilized out via trigonometrically fitted method. Some theoretical properties of block solver are also investigated. To demonstrate the efficiency and accuracy of the method, we solve some examples of stiff ODEs.
Received: November 17, 2021
Revised: December 15, 2021
Accepted: March 25, 2022
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