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A circled plus joining structures into one that splits cleanly.
Also known as: Circled plus, Direct sum, Oplus
The circled plus joins vector spaces or modules so that every element decomposes in exactly one way into parts from each. The same character means exclusive or in logic and addition without carry in coding theory, so context does the disambiguating.
Denotes a direct sum: a combination of structures in which every element has exactly one decomposition into components.
Contexts: Mathematics
Shares its character with exclusive or and with carry-less addition, three unrelated operations written identically.
Contexts: Mathematics
A plus sign of two equal strokes drawn inside a circle that just contains it, standing between two named structures.
Circled plus adds dimensions; circled times multiplies them.