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Simpson's rule

  1. Mar 8, 2007 #1
    why do we use n as even number with simpson's rule ?

  2. jcsd
  3. Mar 9, 2007 #2


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    Staff: Mentor

    Thread moved to calculus homework. pari786 -- tell us what you know about Simpson's rule.
  4. Mar 9, 2007 #3


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    Staff Emeritus
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    Simpson's rule approximates the curve by a series of parabolas each of which requires 3 points. Using one parabola would mean 3 points dividing the entire interval into 2 sub-intervals. Using 2 parabolas would mean 5 points they share one point), so 4 sub-intervals, etc.
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