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formal sum. In DICTIOUS you will not only get to know all the dictionary meanings for the word
formal sum, but we will also tell you about its etymology, its characteristics and you will know how to say
formal sum in singular and plural. Everything you need to know about the word
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English
Noun
formal sum (plural formal sums)
- (mathematics) An expression which looks like a sum but where the symbol + has a purely symbolic role, in the sense that the summands cannot be meaningfully combined.
- (algebra) An element of a free abelian group or vector space regarded as a sum of basis elements.
- (of a series) A sum of an infinite sequence of numbers considered as an indeterminate object, in the sense of being subject to certain algebraic manipulations but not necessarily convergent.