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#1
June 1st, 2005, 03:36 AM
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How do I calculate the area under the curve using Excel?
Is there a function to calculate the area under the curve? I have tried to
use the AREAS(ref) function but failed at finding the area. Maybe I used it wrong? Any help would be greatly appreciated =) 
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#2
June 1st, 2005, 01:38 PM
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AREAS returns the number of range areas of the ref.
To calculate the area under a curve, you can use =SUMPRODUCT(A2:A20-A1:A19,(B2:B20+B1:B19)/2) Where your x values are in A1:A20, and your Y values are in B1:B20. This is an approximate method for finding the area under the curve, summing the area of the trapezoids defined by pairs of points (and the points along the x axis). HTH, Bernie MS Excel MVP "munster909" wrote in message ... Is there a function to calculate the area under the curve? I have tried to use the AREAS(ref) function but failed at finding the area. Maybe I used it wrong? Any help would be greatly appreciated =)
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