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Dimensionality issue with Matlab Function

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want2know
want2know 2013-11-4
关闭： MATLAB Answer Bot 2021-8-20
I thought this should be fairly simple, I really have no idea what went wrong, been trying for a week, gosh!! so ashamed of myself.
I define the following at Workspace: I=[5 5.1 5.2 5.2]; V=[95 80 85 20];
I expect an output like this: at t=0, arr=20, at t=1, arr=30, at t=2, arr=40,
When I run the simulation, what I got is: at t=0, arr=20, 0, 0, 0, at t=1, arr=0, 10, 0, 0, at t=2, arr=0, 0, 10, 0,
There are few problems with this result: 1. I expect only one arr value at a particular time, but it came out four arr values at a time
I wonder why the arr never adds up to 30 and 40 etc My system is as follow: http://imgur.com/nEKDqqS
The codes are here: http://imgur.com/Cipjbyn
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want2know
want2know 2013-11-5
编辑：want2know 2013-11-5
function ar = fcn(signal, V, count)
integ_signal=zeros(4,1); arr=zeros(4,1);
if count<=(length(signal)) if count==1 integ_signal(count,1) = 20; % Initial Condition arr(count,1)= integ_signal(count,1); else integ_signal(count,1) = arr(count-1,1) + 10; arr(count,1)= integ_signal(count,1); end end
ar = arr(count,1);
end
want2know
want2know 2013-11-5
I run the codes in m file without any function, it did gives me correct value, 20, 30,40. but i dont know why when I combine all the blocks in Simulink, the value stays at 10 all the time

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