How can I plot a curve with given x and y variables?

Hello guys,

I have to plot a p-V Diagramm in thermodynamics. Its the isentropic compression from 1->2.

How can I do the curve? I got the straight line from this code.

p = linspace(p1, p2, ); p1=1 p2= 32

V=linspace(V1, V2, ); V1= 2176 V2= 181

plot([V], [p])

Is it possible to create a curve with this code? Or hould I use a funciton for the gradient? Maybe y = -K*(p/V) or p = @(T,V) m*R*T./V;

Best Regards Edi

[Mathieu NOE]

hello

the topic has been already addressed in this forum

how do I plot temperature contours on a PV diagram? - (mathworks.com)

you can expand this code by adding those lines :

figure
plot(Vv1, p(Tv1,Vv1), 'LineWidth',2)
hold on
plot(Vv1, p(Tv2,Vv1), 'LineWidth',2)
plot(Vv1(1)*[1 1], p([Tv1(1) Tv1(end)],[1 1]*Vv1(1)), '-g', 'LineWidth',2)
plot(Vv1(end)*[1 1], p([Tv2(1) Tv2(end)],[1 1]*Vv1(end)), '-g', 'LineWidth',2)
hold off
grid
xlabel('V')
ylabel('p')
axis([125  225    2.0  3.3])
legend('T(273 - 323)', 'T(323 - 373)')

[Eduard Spomer]

Think you very much for your answer. I already saw this and i didnt get it but i try it Again now.