How to impose 'Second Order Approximation'?
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How would I impose 'Second Order Approximation' to the system below?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/146385/image.jpeg)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/146386/image.jpeg)
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Star Strider
2014-12-10
The only possibility that comes to mind in my experience is to take it back to the time domain and calculate a second-order Taylor series representation of it. (That’s usually done for nonlinear systems in order to linearise them, but yours seems to me to be linear.)
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