Hi,
To plot two functions with different y-axis limits in MATLAB, you can use two y-axes on the same plot with the “yyaxis” function.
Assuming you are solving for (f_2) in terms of (f_1), use “fplot” to plot the functions over the specified x-interval.
Next, use the “yyaxis” function with “yyaxis left” and “yyaxis right” to create two y-axes, one for each function, switching between the left and right y-axes. Use “ylim” to set the y-axis limits for each axis.
Please refer to the following example to structure the code for plotting two functions with different y-axis limits:
% Define symbolic variables
syms f_1 f_2;
% Define your equation
x_1 = 1; x_2 = 2; x_3 = 3; x_4 = 4; x_5 = 5; x_6 = 6; x_7 = 7; % Example values
g = 0.5*x_1*(x_2*f_1-x_3*f_2)^2 + x_4*f_1 + x_5*f_2 + x_6 - x_7;
% Solve for f_2
funct = solve(g, f_2, 'Real', true, 'ReturnConditions', true);
% Assume conditions
assume(funct.conditions);
% Define y-axis limits
y_lim1 = [10, 15]; % Limits for first function
y_lim2 = [0, 20]; % Limits for second function (example)
% Create figure
figure;
% Plot first function
yyaxis left;
fplot(funct.f_2, [7, 50], 'Color', 'b');
ylim(y_lim1);
ylabel('f_2 Values');
% Plot second function (for demonstration, using a simple example function)
yyaxis right;
fplot(@(f_1) sin(f_1), [7, 50], 'Color', 'r');
ylim(y_lim2);
ylabel('sin(f_1)');
% Add labels and title
xlabel('f_1 Values');
title('Plot with Two Y-Axes');
% Add legend
legend('f_2', 'sin(f_1)');
Kindly refer to the following MathWorks documentation to know more about the functions discussed above:
- yyaxis: https://www.mathworks.com/help/matlab/ref/yyaxis.html
- ylim: https://www.mathworks.com/help/matlab/ref/ylim.html
I hope the solution provided above is helpful.
