Plotting the element of a 3D array
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Yokuna
il 11 Nov 2022
Risposto: Walter Roberson
il 11 Nov 2022
The dimension of F is 2x2x145 (3D array), i.e. we have 145 number of 2x2 matrices. Now I want to find a vector having the (1,1)th element of all the matrices. How to obtain such vector having the (1,1)th element of all the matrices and then plot it with respect to time (T)?
M1 = [2 0;0 2];
odefun = @(t,y) part_a(t,y,M1);
[T,F] = ode45(odefun,[10 0],[2 0;0 2]);
F = reshape(F.',2,2,[]);
plot(T,F(1,1,:))
function dy = part_a(t,y,M1)
F = reshape(y,size(M1));
FA = -M1*F;
dy = FA(:);
end
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