If you know the equation of the curve and if you don't like calculus, you
could use Solver to find the max. I would be tempted to give some
constraints for the x-value

best wishes

--
Bernard V Liengme
www.stfx.ca/people/bliengme
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"eastham85" wrote in message
...
how can i find the coordinatres of the maximum point on a curve plotted in
excel????