Answer:
Here is the implementation of the "PopCalculator" function in MATLAB that uses Euler's Method to calculate population growth under limited conditions:
function [t, P] = PopCalculator(tstart, tend, dt, Pinit, kgm, Pmax)
% Initialize time and population vectors
t = tstart:dt:tend;
P = zeros(size(t));
P(1) = Pinit;
% Use Euler's Method to calculate population growth
for i = 2:length(t)
dP = kgm*P(i-1)*(1 - P(i-1)/Pmax); % differential equation
P(i) = P(i-1) + dt*dP; % Euler's Method
end
end
The inputs to the function are:
tstart: The year in which the calculation begins
tend: The year in which the calculation ends
dt: The time step for Euler's Method
Pinit: The initial population
kgm: The maximum possible growth rate of the population
Pmax: The carrying capacity population of the system.
The function returns two row vectors: t, which contains time values, and P, which contains population values.
Here's an example of how to call the function with the given input values:
[t, P] = PopCalculator(0, 10, 0.1, 2, 0.5, 10);
This will calculate the population growth from year 0 to year 10, with a time step of 0.1, an initial population of 2, a maximum growth rate of 0.5, and a carrying capacity of 10. The t and P vector will contain the calculated time and population values respectively.
Step-by-step explanation: