Last Updated:2025/11/26

When studying limits that diverge, mathematicians often work in the extended real number system to include ±∞ and preserve the usual order.

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When studying limits that diverge, mathematicians often work in the extended real number system to include ±∞ and preserve the usual order.

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発散する極限を考えるとき、数学者は負の無限大(−∞)が任意の実数より小さく、正の無限大(∞)が任意の実数より大きくなるように正負の無限大を付加した実数系を用いることが多い。

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