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Continuous function (view source)

135 bytes added , 15:47, July 13, 2010

→‎Interesting examples: another amusing example: a function which is continuous in one point only

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is nowhere continuous.

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Similarly, the function <math>f(x) = x \cdot \chi_{\mathbb{Q}}(x)</math> is continuous only in 0, and discontinuous everywhere else.

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[[category: mathematics]]

[[category: Topology]]

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