partial mappings

[PAR-shul MAP-ingz]
nounpl: partial mappings
mapeamentos parciais
1. In mathematics and computer science, functions or relations that are not defined for all elements of their domain; mappings where some inputs may not have corresponding outputs
Partial mappings are useful in programming when dealing with optional values or undefined states.
Mapeamentos parciais são úteis na programação ao lidar com valores opcionais ou estados indefinidos.
2. In formal logic and set theory, a relation between two sets where not every element of the domain necessarily maps to an element of the codomain
The function f(x) = 1/x represents a partial mapping from real numbers to real numbers, undefined at x=0.
A função f(x) = 1/x representa um mapeamento parcial de números reais para números reais, indefinida em x=0.
This is a technical term primarily used in academic and professional contexts in mathematics, computer science, and logic. It is not commonly used in everyday conversation in either Brazil or the United States, but is standard terminology in university-level mathematics courses and in software development discussions involving type theory and functional programming.
Synonyms / Sinônimos
partial functionsincomplete mappingsundefined mappings
Antonyms / Antônimos
total mappingscomplete functionstotal functions

Regional Variations

General Brazilian
mapeamentos parciais
Standard term used in mathematics and computer science contexts
Portugal
mapeamentos parciais
Same usage as Brazilian Portuguese in technical contexts
Academic/Technical
funções parciais
Alternative term often used interchangeably in formal mathematics

Related Words

functiondomaincodomainrelationundefined behavior

Related Idioms & Phrases

defined on a subset
not defined everywhere
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