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How to find relative maximums and minimums of a sequence of points in list form?
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l1=Sequence((i,sin(i)),i,0,10,0.01)
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maybe this?
Have you tried eg
maybe this?
from rami's points other method
I like their methods because they are very interesting and complicated. I had thought of something like this; but it does not work for cases where there is noise in the data. This only worked with charts with smooth data.
Maximum Local Lists
RemoveUndefined(Sequence(If(y(Element(l1, i  1)) < y(Element(l1, i)) ∧ y(Element(l1, i + 1)) < y(Element(l1, i)), Element(l1, i)), i, 2, Length(l1)  1, 1))
Minimum Local Lists
RemoveUndefined(Sequence(If(y(Element(l1, i  1)) > y(Element(l1, i)) ∧ y(Element(l1, i + 1)) > y(Element(l1, i)), Element(l1, i)), i, 2, Length(l1)  1, 1))
Then you need to fit a curve with one of the Fit...() commands first
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