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- Dictionaryrum/rʌm/
noun
- 1. an alcoholic spirit distilled from sugar-cane residues or molasses: "she fortified herself with a large tot of rum"
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1 day ago · Hilbert spaces arise naturally and frequently in mathematics and physics, typically as function spaces. Formally, a Hilbert space is a vector space equipped with an inner product that induces a distance function for which the space is a complete metric space. A Hilbert space is a special case of a Banach space .