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3/3/2009: {{:chapter_4.pdf|Chapter 4}} | 3/3/2009: {{:chapter_4.pdf|Chapter 4}} | ||

Here is Otto and Day chapter 4 on numerical and graphing techniques. I also scanned {{:otto_day_primer1.pdf|Primer 1}} in case you would like to read that as well. It covers functions and approximations. -Kate | Here is Otto and Day chapter 4 on numerical and graphing techniques. I also scanned {{:otto_day_primer1.pdf|Primer 1}} in case you would like to read that as well. It covers functions and approximations. -Kate | ||

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+ | 3/5/2009: | ||

+ | Here are a few scripts relating to chapter 4. Here is Brian Knaus' logistic growth script: {{:logistic_growth.r|Logistic growth}} | ||

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+ | Here's my version, I've also included a script demonstrating Euler's method, demonstrating the increase in chaos as the step size approaches 1 (i.e. a transition from continuous time to discrete time) {{:logistic.r|}} | ||

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+ | Finally, I found a very cool script on the R help forums that allows you to plot vector fields. I've included the code for the function, and an example of lotka-volterra competition vector fields (Like figure 4.15) {{:lotka_volterra_competition.r|}} | ||

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