Solutions of general second order ODEs using direct block method of runge-kutta type.(Penyelesaian bagi persamaan pembezaan biasa umum peringkat kedua dengan kaedah blok langsung jenis Runge-Kutta)
This paper presents a three point block variable step size method of Runge-Kutta type for solving general second order ordinary differential equations (ODEs). The block method is formulated using Lagrange interpolation polynomial. Most of the mathematical problems which involve higher order ODEs...
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| Main Authors: | , , , |
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| Format: | Article |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2011
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| Online Access: | http://journalarticle.ukm.my/3456/ http://www.ukm.my/ppsmfst/jqma/index2.html |
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| Summary: | This paper presents a three point block variable step size method of Runge-Kutta type for
solving general second order ordinary differential equations (ODEs). The block method is
formulated using Lagrange interpolation polynomial. Most of the mathematical problems
which involve higher order ODEs could be reduced to system of first order equations. The
proposed method obtains the numerical solutions directly without reducing to first order systems of ODEs. The method is used to compute the solutions at three points simultaneously by integrating the coefficients over the closest point in the block. The stability region of the
block method is also studied. The numerical results obtained shows that the proposed method is more efficient compared to existing block methods in terms of total steps and execution
time. |
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