Math help please

Discussion in 'Chit Chat' started by cdeane, Apr 2, 2009.

  1. cdeane

    cdeane Member

    I have a problem I need to invert(I think).Maybe convert is the proper way to say it.
    First off,this is what I'm working with so far.

    d=Sqrt(((48*t*l)/Pi)+c^)

    If:
    t(thickness)=.00185
    l(length)=20,000'
    c(core o.d.)4''
    Then:
    d(diameter)should be 24.11

    Given that info I would like to find the l(length)in stead of d(diameter)from the info given above.
     
  2. agraham

    agraham Expert Licensed User

    I assume the missing exponent of c^ is 2. Try

    l = (d^2 - c^2)*cPI/(48*t)
     
  3. cdeane

    cdeane Member

    Your right about the exponent.

    The formula works perfectly.
    THANKS
     
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