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Math Help - Switching limits of an integral

  1. #1
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    Switching limits of an integral

    Quick question:

    For the integral of f(x) from a to b (b > a), is it possible to switch the limits to be from b to a? Does it require some sign changes?
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    Quote Originally Posted by borracho View Post
    Quick question:

    For the integral of f(x) from a to b (b > a), is it possible to switch the limits to be from b to a? Does it require some sign changes?
    yes, \int_a^b f(x)~dx = - \int_b^a f(x)~dx
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  3. #3
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    So it makes sense to integral from b to a, even though b is larger?
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    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by borracho View Post
    So it makes sense to integral from b to a, even though b is larger?
    yes, it makes sense. just change the sign to switch the limits, and you're fine.
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