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Question: (Challenging Question) How to extract the extremes of a cyclical chart?

Question:(Challenging Question) How to extract the extremes of a cyclical chart?

protrader 409 Maple
cyclical
December 07 2011
1

 

 

 

 

Hi,

I need to extract the extremes of a cyclical function, actually I have all the data (x,y) and I was wondering whether extracting these extremes as I have shown in the attached figure will be easy with Maple or not? NOTICE that the attached figure is actually 2 series of data overlaid, you just consider the blue one and ignore the red one

TIA

 
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