Algebraic Loop Problem

2011 3 15
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Hi
i have a S-function block that works perfectly fine when i didnt feedback it as an input for the S-function.
When i feedback my results to the s-function, it comes out a algebraic loop error or the output becomes 0. What i want is just used the calculated value from the S-function block for the next time step.
Is there any other methods to get what i want other than looping back the value?

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Tan Edwin
Tan Edwin 2011-3-15
i dun need the matlab to calculate any convergence solution

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Tan Edwin
Tan Edwin 2011-3-15

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Sry didnt notice that there were post on this already.
http://www.mathworks.com/matlabcentral/answers/925-loop-algebraic-and-variable-signal
Problem solved by using the unit delay block.

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Shpat
Shpat 2011-3-15

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the brutal solution is use a very small delay

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