how can I plot
1 次查看(过去 30 天)
显示 更早的评论
sigma_0 = 2;
r = 1:0.1:2;
ksi = 1./r;
theta = 0;
sigma_r = (1/2.*sigma_0.*(1-(ksi.^2)))-(1/2.*sigma_0.*(1+(3.*(ksi.^4))-(4.*(ksi.^2))).*cos(2.*theta))
How can I show this as theta 0, 90, 180 and 270, all in one chart, depending on sigma r?
2 个评论
Manikanta Aditya
2024-3-25
Hey,
Check this:
% Constants
sigma_0 = 2;
theta_deg = [0, 90, 180, 270]; % Degrees
theta_rad = deg2rad(theta_deg); % Convert degrees to radians
% Variable
r = 1:0.1:2;
% Pre-allocate sigma_r for efficiency
sigma_r = zeros(length(r), length(theta_rad));
% Calculate sigma_r for each theta
for i = 1:length(theta_rad)
theta = theta_rad(i);
ksi = 1./r;
sigma_r(:, i) = (1/2.*sigma_0.*(1-(ksi.^2))) - (1/2.*sigma_0.*(1+(3.*(ksi.^4))-(4.*(ksi.^2))).*cos(2.*theta));
end
% Plotting
figure; % Create a new figure
hold on; % Hold on to plot multiple lines
colors = ['r', 'g', 'b', 'k']; % Colors for each theta
for i = 1:length(theta_rad)
plot(r, sigma_r(:, i), 'Color', colors(i), 'DisplayName', sprintf('\\theta = %d°', theta_deg(i)));
end
hold off;
xlabel('r');
ylabel('\sigma_r');
title('\sigma_r vs. r for \theta = 0, 90, 180, and 270 degrees');
legend('show');
grid on;
回答(1 个)
Hassaan
2024-3-25
sigma_0 = 2;
r = 1:0.1:2; % Range of r
theta_deg = [0, 90, 180, 270]; % Angles in degrees
theta_rad = deg2rad(theta_deg); % Convert angles to radians
% Preallocate matrix for sigma_r values
sigma_r = zeros(length(r), length(theta_rad));
% Calculate sigma_r for each theta
for i = 1:length(theta_rad)
ksi = 1./r;
theta = theta_rad(i);
sigma_r(:, i) = (1/2.*sigma_0.*(1-(ksi.^2))) - (1/2.*sigma_0.*(1+(3.*(ksi.^4))-(4.*(ksi.^2))).*cos(2.*theta));
end
% Plot sigma_r vs r for each theta
figure;
plot(r, sigma_r, 'LineWidth', 2);
xlabel('r');
ylabel('\sigma_r');
title('\sigma_r vs r for Different \theta Values');
legend('0°', '90°', '180°', '270°');
grid on;
-----------------------------------------------------------------------------------------------------------------------------------------------------
If you find the solution helpful and it resolves your issue, it would be greatly appreciated if you could accept the answer. Also, leaving an upvote and a comment are also wonderful ways to provide feedback.
It's important to note that the advice and code are based on limited information and meant for educational purposes. Users should verify and adapt the code to their specific needs, ensuring compatibility and adherence to ethical standards.
Professional Interests
- Technical Services and Consulting
- Embedded Systems | Firmware Developement | Simulations
- Electrical and Electronics Engineering
Feel free to contact me.
0 个评论
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Introduction to Installation and Licensing 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!