Abstract
StiffOrdinary Differential Equations (SODEs) are present in engineering, mathematics, and sciences.Identifying them foreffective simulation (or prediction) and perhaps hardware implementation in aerospace c ontrol systemsis imperative. This paper considers only linear Initial Value Problems (IVPs) and brings to light the fact that stiffness ratio or coefficient of a suspected stiff dynamic system can be elusive as regards the phenomenon of stiffness. Though,it gives the insight suggesting stiffness when the value is up to 1000 butis not necessarily so in all ODEs. Neither does a value less than 1000 imply non-stiffness.MATLAB/Simulink
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