How to obtain inflection points for a curve ?

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Surendra Ratnu
Surendra Ratnu 2022-10-15
评论： Surendra Ratnu 2022-10-17
We want to find points where curve changed its slop and i attached curve .mat file.

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回答（1 个）

Walter Roberson
Walter Roberson 2022-10-15
use gradient() to take numeric derivative. Use gradient() again to get second derivative. Search the second derivative for zeros or sign changes.
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Surendra Ratnu
Surendra Ratnu 2022-10-17
There are many points but i want few points among. I showed in the image in green colour points for samples. I need only these points for given curve. Can you tell me how to do that.

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