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The calculus equivalent of an improper fraction; an integral where at least one of its limits is infinite, or where its function has at least one vertical asymptote, which makes its value harder to calculate.
Why isn’t an “improper integral” termed an “infinite integral” since it involves the idea of infinity? Because not all “infinite integrals” have an infinite value—in fact, a number of them occupy a finite area although the functions go infinitely far up or down.
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by MathPlus July 31, 2018
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