Simulink - Forward Euler Backward Euler

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JOKY JOKE 2011-12-22

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Hi,

I am using a discrete integrator in an enabled or in an enabled and triggered subsystem. If I use Forward Euler, the first integration step in the enabled and triggered subsystem is wrong, whereas in the triggered subsystem it is right. If I use backward Euler integration, it is right in both ways. Why does the forward Euler integration in a triggered and enabled subsystem yield a wrong result in the first step?

Thank you

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回答（1 个）

Guy Rouleau 2011-12-22

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https://ww2.mathworks.cn/matlabcentral/answers/24532-simulink-forward-euler-backward-euler#answer_32229

This really looks like you are affected by the following bug:

http://www.mathworks.com/support/bugreports/326058

Try setting the diagnostic "Underspecified initialization detection" to Simplified:

http://www.mathworks.com/help/toolbox/simulink/gui/bq8t6qh.html#brphwdw-1

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