double loop plot !!

I need do draw a chart showing the change in value (COP) Related to the relation COP=Te/Tc-Te Where Te=-15:10 and Tc=30:50 I want to plot (COP,Te) for each value of Tc Keeping all the plots in one graph Any help !

[Walter Roberson]

Te = (-15:10).';
Tc=30:50;

COP = Te ./ Tc - Te;
surf(Tc, Te, COP)

Answer 1

[Aditya]

Hi Karim,

You can use a single for loop to compute COP values for each Tc and plot them together in one graph:

Te = -15:10; 
Tc = 30:50; 
hold on; % Keep all plots in one graph

for tc = Tc
    COP = Te ./ (tc - Te); % Compute COP for the current Tc
    plot(Te, COP, 'DisplayName', ['Tc = ' num2str(tc)]); % Plot COP vs Te
end

xlabel('Te'); 
ylabel('COP'); 
title('COP vs Te for different Tc values');
legend show;
grid on;
hold off;

I hope this helps!