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Calculate X when derivative is zero

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Gavin Seddon
Gavin Seddon on 23 May 2016
Closed: John D'Errico on 23 May 2016
Hello, I want to calculate the first X instance when the function derivative is set equal to 0. I understand the solve toolbox will do this but the method is unclear. Will someone describe this procedure?
Gavin.
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John D'Errico
John D'Errico on 23 May 2016
Read the help for solve. Not that there is NO assurance that solve will yield ALL solutions. As well, solve will often find complex solutions. How you define "first" when a variable is complex is difficult to do.

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