Why do I get a different response when using the "step" command in the command line and the scope in Simulink?

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Mr. NailGuy 2017-10-28

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评论： Birdman 2017-10-30

I have a MIMO (10 outputs and 5 inputs) state transition matrix I don't understand why do I get different responses when invoking a step input in the command line and in Simulink. Can someone give me a light on this?

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Answer 1

Birdman 2017-10-30

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编辑：Birdman 2017-10-30

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It is because of the solver. In Simulink, you probably use variable step solver, which is more accurate. In MATLAB Command line, you can overcome this situation by making the simulation with a small step size that you define, so you will get more accurate results.