Population growth models

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Exponential population growth model

[math]\displaystyle{ \Delta{f} = \alpha\cdot \Delta t }[/math]
[math]\displaystyle{ \frac{df}{dt} = \beta I S }[/math]

2468101214246810−2−4−6−8−10−12
s = 0.50
α = 0.20

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