• Doctor xNo
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      02 years ago

      I suggest you Google “Projectively Extended Real Numbers”.

      • @[email protected]
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        12 years ago

        You mean this one?

        The projectively extended real number line is distinct from the affinely extended real number line, in which +∞ and −∞ are distinct.

        Now tell me, do we usually work with the projectively extended real numbers?