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Math Help - intractable??

  1. #1
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    intractable??

    what's the indefinite integral of [(sin x)/x] w.r.t.x.?
    read somewher about it being "intractable"..that only deinite integrals can be obtained...
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  2. #2
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    Quote Originally Posted by abiy3000
    what's the indefinite integral of [(sin x)/x] w.r.t.x.?
    read somewher about it being "intractable"..that only deinite integrals can be obtained...
    I don't believe there is a specific Mathematical definition for "intractable." An "intractable" problem is simply one that cannot be solved. In this case, the integral can't be expressed in terms of a finite number of closed form functions (like polynomials, trig functions, logs, etc.).

    I usually reserve the use of the word "intractable" to describe problems that look easy, but are in fact impossible. This is definately an integral I would call "intractable!"

    -Dan
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  3. #3
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    Smile thanks

    thanks.
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