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Unexpected results of MATLAB's ode45

Here is a guess as to what might be going on. ode45 (like all the MATLAB ode solvers) adjusts the step size based on it's estimate of the solution error. All equations are considered in this calculati …
Bill Greene's user avatar
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1 vote

Numerical methods for coupled stiff PDEs

The first step is to add one more equation defined as: $$\frac{\partial y_3}{\partial t} = v$$ Then if you substitute equations 1 and 2 and the new equation into your modified equation 3 you get: $ …
Bill Greene's user avatar
  • 6,339