formal sum (English, noun)
expansion: formal sum (plural formal sums)
Senses:
topics: algebra
mathematics
sciences
glosses: 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.
An element of a free abelian group or vector space regarded as a sum of basis elements.
topics: mathematics
sciences
glosses: 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.
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.
raw_tags: of a series
Forms:
form: formal sums
tags: plural