Contour plot of a function
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Please someone should with a contour plot of a p for various values of xi and H. For instance, H=0..3, and xi=2.0..0.0, where H is the x-axis, xi is the y-axis and p is the height of the contour. I need r to compute p, that is why write the expression for r.
for i = 1:m
q = x +i*y;
r(i)=q-(1-alpha)*tan(q)+(alpha3*xi*alpha/eta1)./(4*k1*q.^2/d^2-alpha3*xi/eta1).*tan(q)...
+ ((chi_a*H.^2*alpha)./(4*k1*q.^2/d^2-alpha3*xi/eta1 - chi_a*H.^2)).*tan(q);
end
for i=1:m
p(i) = gamma1*alpha/(4*k1*(r(i).^2)/d^2-alpha3*xi/eta1);
end
0 Kommentare
Antworten (1)
Torsten
am 1 Sep. 2022
Bearbeitet: Torsten
am 1 Sep. 2022
H = 0:0.01:3;
XI = 0:0.01:2;
for i=1:numel(H)
h = H(i);
for j=1:numel(XI)
xi = XI(j);
for k=1:m
q = x +k*y;
r = q-(1-alpha)*tan(q)+(alpha3*xi*alpha/eta1)./(4*k1*q.^2/d^2-alpha3*xi/eta1).*tan(q)...
+ ((chi_a*H.^2*alpha)./(4*k1*q.^2/d^2-alpha3*xi/eta1 - chi_a*H.^2)).*tan(q);
p(i,j,k) = gamma1*alpha/(4*k1*(r^2)/d^2-alpha3*xi/eta1);
end
end
end
Now p is 3-dimensional instead of 2-dimensional as required for a contour plot. What now ?
5 Kommentare
Torsten
am 1 Sep. 2022
So you have x1, x2, H and xi given over an interval of values and thus r (resp. p) depending on 4 parameters. If you want to plot a surface over H and xi, you must set x1 and x2 to a constant value and do the same for H and xi what you did for x1 and x2 in your code from above.
Siehe auch
Kategorien
Mehr zu Contour Plots finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!