I want to plot a graph as shown below, For that non linear system, i have written a Matlab script but i can't really identify how do i plot such graph.
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%% WaterTank MATLAB Script
syms h(t)
Dh = diff(h);
A = 20; a = 2; b = 5; U = 0:0.1:1.0; V = 1;
watertank = 1*diff(h,t) - (1/A)*b.*V - (1/A)*a*sqrt(h) == 0;
soln = dsolve(watertank, h(0) == 0, Dh(0) == 0);
figure(1), clf
fplot(soln)
figure(2), clf
plot(U,Y)
![IMG_20190423_121652.jpg](https://www.mathworks.com/matlabcentral/answers/uploaded_files/215522/IMG_20190423_121652.jpeg)
Zulauf means Inlet (denoted in the script as 'U')
Fullstand means Height of the tank (denoted in the script as 'h')
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