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Applications of Differential Equations

Population Dynamics

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Your result should have been:

FindRoot[{(verhulst /. t -> 1900) == 76212200., (verhulst /. t -> 2010) == 310383948.}, {a, 0.02}, {b, 10^-10}]

FindRoot Output

Now substitute these results back into verhulst using the command:

verhulst = verhulst/.%

Let's go look at what you should have gotten...


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ODE Laboratories: A Sabbatical Project by Christopher A. Barker

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