Unable to perform assignment
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From my attached code and get the following error
Unable to perform assignment because the left and right sides have a different number of elements.
Error in aa1 (line 12)
*Y(i)yo=utput;
a= 0.2; b= 0.2; c = 5.7;
% initial condition
yo = [0.5;0.5;1];
% computing the trajectory
dt = 0.01;
tspan = (dt:dt:100);
yinput = yo;
Y = zeros(tspan(end)/dt,1);
for i = 1: tspan(end)/dt
time = i*dt;
youtput = rk4angelstepb(@rosslerb,dt,yinput,a,b,c);
Y(i) = youtput;
yinput = youtput;
end
1 个评论
Adam
2019-6-28
You can see what size things are with a breakpoint, or using the stop on errors option and testing on command line when it stops. It's a valuable resource for finding these problems. How you solve them is very situation dependent, but the error message says what is wrong and what is expected in this case.
采纳的回答
If the initial condition has 3 elements: yo = [0.5;0.5;1], te evaluated trajectory will have 3 elements per time step also. Then you need most likely:
Y = zeros(3, tspan(end)/dt);
for i = 1: tspan(end)/dt
time = i*dt;
youtput = rk4angelstepb(@rosslerb,dt,yinput,a,b,c);
Y(:, i) = youtput;
...
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