numerical analysis - need help

Discussion in 'Math' started by renathy, Mar 10, 2011.

  1. renathy

    Thread Starter New Member

    Mar 10, 2011
    1
    0
    I have integral:

    Int(-1;1) x^4 dx

    Need to solve it using numerical integration.
    Q(f) = A1(f(a)) + A2(f(x1)) + A3 (f(b))

    A1 -?
    A2 -?
    A3 -?
    x1- ?

    Soulve integral and find error. Need to solve without programming (just on paper).
    I am a little bit confused in solving this. Probably Simpson formula can be used, but not sure... My result has too big error.
     
  2. Heavydoody

    Active Member

    Jul 31, 2009
    140
    11
    n must be even for Simpson's rule. I suspect you are supposed to use the trapezoidal rule here...but that's a guess based on the format and what is being asked.
     
  3. Heavydoody

    Active Member

    Jul 31, 2009
    140
    11
    No, I am wrong, n is even (I forgot that a is x0). I get .67 using Simpson's rule, for a 67 percent error.
     
    Last edited: Mar 10, 2011
  4. Black-Bird

    New Member

    Jan 26, 2011
    23
    0
    Numerical Analysis : my worst nightmares ?

    good luck
     
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