Plotting Pade Approximations with Dead Time

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Will Jeter 2021-3-20

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https://ww2.mathworks.cn/matlabcentral/answers/778847-plotting-pade-approximations-with-dead-time

评论： Paul 2021-3-22

I need help plotting f(s) = exp(-tds) as well was the 1st and 2nd order Pade approximations. Where td = 0.1,1, 10. So three plots with three curves each.

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Will Jeter 2021-3-20

Ive tried using pade(f,var) function using f = exp(-tds). Then plotting pade as a function of time, t. I can't get the pade function to work for some reason.

Paul 2021-3-22

The pade approximants and exp(-td*s) are functions of complex frequency (s), not functions of time. What plots are you trying to make? Typically choices would be gain and/or phase vs frequency.

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