A numerical algorithm for solving stiff ordinary differential equations

SAM Yatim, ZB Ibrahim, KI Othman… - Mathematical …, 2013 - Wiley Online Library
Mathematical Problems in Engineering, 2013Wiley Online Library
An advanced method using block backward differentiation formula (BBDF) is introduced with
efficient strategy in choosing the step size and order of the method. Variable step and
variable order block backward differentiation formula (VSVO‐BBDF) approach is applied
throughout the numerical computation. The stability regions of the VSVO‐BBDF method are
investigated and presented in distinct graphs. The improved performances in terms of
accuracy and computation time are presented in the numerical results with different sets of …
An advanced method using block backward differentiation formula (BBDF) is introduced with efficient strategy in choosing the step size and order of the method. Variable step and variable order block backward differentiation formula (VSVO‐BBDF) approach is applied throughout the numerical computation. The stability regions of the VSVO‐BBDF method are investigated and presented in distinct graphs. The improved performances in terms of accuracy and computation time are presented in the numerical results with different sets of test problems. Comparisons are made between the proposed method and MATLAB’s suite of ordinary differential equations (ODEs) solvers, namely, ode15s and ode23s.
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