How to plot a 3D graph
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
sophp
am 31 Jan. 2018
Kommentiert: Star Strider
am 31 Jan. 2018
I am attempting to plot a mesh 3D graph that displays how Y_B varies with t and T. I then want to solve this graph to find the coordinates that gives the maximum value of Y_B. This is the code to give a graph that displays how T varies with Y_B for different variables for t
if true
% code
T=600:10:850;
t = 1;
k1 = 10^7.*exp(-12700./T);
k2 = 5*10^4.*exp(-10800./T);
k3 = 7*10^7.*exp(-15000./T);
t=1:2:20;
hold on;
for i=1:numel(t)
Y_B = (k1.*t(i).*(k1+k3))./(((k2.*t(i))+1).*(k1+k3).*(1+(t(i).*(k1+k3))));
plot(T,Y_B);
end
How do I transform this into a 3D plot for t = 0.2:20 and T = 600:850
2 Kommentare
Star Strider
am 31 Jan. 2018
What is ‘T’?
What is its range?
How does it enter into the calculation of ‘Y_B’?
Akzeptierte Antwort
Star Strider
am 31 Jan. 2018
Use meshgrid to create matrices for ‘t’ and ‘T’, and remove the subscripts from the ‘Y_B’ calculation:
T=600:10:850;
t=1:2:20;
[tm,Tm] = meshgrid(t, T);
k1 = 10^7.*exp(-12700./Tm);
k2 = 5*10^4.*exp(-10800./Tm);
k3 = 7*10^7.*exp(-15000./Tm);
Y_B = (k1.*tm.*(k1+k3))./(((k2.*tm)+1).*(k1+k3).*(1+(tm.*(k1+k3))));
figure(1)
surf(t,T,Y_B)
grid on
xlabel('t')
ylabel('T')
zlabel('Y\_B')
4 Kommentare
Star Strider
am 31 Jan. 2018
I would do this:
DisplayCoordinates = [tm(Y_BmaxRow,Y_BmaxCol), Tm(Y_BmaxRow,Y_BmaxCol), Y_B(Y_BmaxRow,Y_BmaxCol)]
DisplayCoordinates =
19.0000 710.0000 0.5114
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Line 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!