I couldn't match the index no., can anyone please help me to resolve this issue.
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clc
clear
ti = 0;
tf = 7E-5;
tp = 1E-9;
tspan= [0:1E-7:7E-5]./tp;
KC = 1;
h = 1E-2;
h1 = 1;
y0= [ (h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
(h)*rand(2,1); ((-3.14).*rand(1,1) + (3.14).*rand(1,1));
];
yita_mn = [0 0 0 0 0 0
0 1 1 1 1 0
0 1 1 1 1 0
0 1 1 1 1 0
0 1 1 1 1 0
0 0 0 0 0 0].*1E-3;
N = 4;
tp = 1E-9;
o = sort(10e2*rand(1,16),'ascend');
[T,Y]= ode45(@(t,y) rate_eq(t,y,yita_mn,o),tspan,y0);
figure(3)
plot(T,(Y(:,3)),'linewidth',2);
hold on
for i = 6:3:48
plot(T,(Y(:,i)),'linewidth',2);
end
grid on
hold off
xlabel("time")
ylabel("phase")
set(gca,'fontname','times New Roman','fontsize',18,'linewidth',1.8);
function dy = rate_eq(t,y,yita_mn,o)
N = 36;
dy = zeros(3*N,1);
dGdt = zeros(N,1);
dAdt = zeros(N,1);
dOdt = zeros(N,1);
P = 0.4;
a = 1;
T = 800;
tp = 1E-9;
Gt = y(1:3:3*N-2);
At = y(2:3:3*N-1);
Ot = y(3:3:3*N-0);
k = 2E-3;
for i = 1:N
dGdt(i) = (P - (Gt(i)) - (1 + 2.*Gt(i)).*((At(i)))^2)./T ;
dAdt(i) = Gt(i)*(At(i));
dOdt(i) = (-a).*(Gt(i)) + o(1,i).*tp;
for j = 1:N
dAdt(i) = dAdt(i) + yita_mn(i,j)*(At(j))*cos(Ot(j)-Ot(i));
dOdt(i) = dOdt(i) + yita_mn(i,j)*((At(j)/At(i)))*sin(Ot(j)-Ot(i));
end
end
dy(1:3:3*N-2) = dGdt;
dy(2:3:3*N-1) = dAdt;
dy(3:3:3*N-0) = dOdt;
end
0 Kommentare
Antworten (1)
Torsten
am 16 Apr. 2023
Bearbeitet: Torsten
am 16 Apr. 2023
yita_mn has size 6x6, but your loop in which you access yita(i,j) runs for i = 1:16 and j = 1:16.
And dy should be allocated as dy = zeros(3*N,1), not dy = zeros(4*N,1).
3 Kommentare
Torsten
am 16 Apr. 2023
now loop while run for i and j for 1:36, still showing error.
Since yita_mn is 6x6, it should be obvious that each of the loops can only run from 1 to 6.
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