I have some data in a text file. I want to import this data into Mathematica, and then I want to calculate the numerical derivatives of this data. In particular, I need to find the y value where the first derivative is equal to zero.(adsbygoogle = window.adsbygoogle || []).push({});

I can import data. I can use the ND function for numerical derivativess, but I'm unsure how to accomplish the rest.

The data follows a sine curve with increasing amplitude. Do I need to fit the data first somehow?

Any help is appreciated. I'm kind of a beginner when it comes to Mathematica.

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# Numerical Derivatives in Mathematica

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