A Fifth-Order Five-Stage Trigonometrically-Fitted Improved Runge-Kutta Method for Oscillatory Initial Value Problems

Authors

  • Aliyu Umar Mustapha

    Federal Polytechnic, Offa, Nigeria
    Author
  • Abdulrahman Ndanusa

    Federal university of Technology, Minna, Nigeria
    Author
  • Ismail Gidado Ibrahim

    Federal Polytechnic, Offa, Nigeria
    Author

Keywords:

Improved Runge-Kutta (IRK) method, Initial value Problem, Oscillating solution, Trigonometric fitting

Abstract

Aliyu Umar Mustapha, Abdulrahman Ndanusa, and Ismail Gidado Ibrahim

A fifth-order five-stage trigonometrically-fitted Improved Runge-Kutta (TFIRK5-5) method for solving first-order initial value problems (IVPs) has been derived and analyzed in this work. The method is shown to integrate exactly the initial value problem whose solution is a linear combination of the set functions and trigonometrically fitted. For exponentially fitted, where, being the main frequency of the problem, is used to increase the accuracy of the method. The numerical results revealed the effectiveness of the new method in comparison with other existing methods in the literature.

Author Biographies

  • Aliyu Umar Mustapha, Federal Polytechnic, Offa, Nigeria

    Department of Statistics

  • Abdulrahman Ndanusa , Federal university of Technology, Minna, Nigeria

    Department of Mathematics

  • Ismail Gidado Ibrahim, Federal Polytechnic, Offa, Nigeria

    Department of Statistics

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Published

2021-07-08

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