álgebra
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Portuguese
Etymology
From Arabic الْجَبْر (al-jabr), through Latin algebra.[1]
Pronunciation
Noun
álgebra f (plural álgebras)
- algebra
- (mathematics) study of formal manipulations of equations, with the aim of solving certain problems (or the equations themselves)
- (mathematics) set of unary and binary operations related to each other by certain properties
- compendium of this discipline
- (obsolete) art of restoring dislocated bones
Derived terms
References
- ^ “álgebra”, in Dicionário infopédia da Língua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2024
Spanish
Etymology
From Arabic الجبر (al-jabr, “reunion, resetting of broken parts”), used in the title of al-Khwarizmi’s influential work عِلْم اَلْجَبْر وَالْمُقَابَلَة (ʕilm al-jabr wālmuqābala, “the science of restoration and equating like with like”).
Pronunciation
Noun
álgebra f (plural álgebras)
Usage notes
- Feminine nouns beginning with stressed /ˈa/ like álgebra take the singular definite article el (otherwise reserved for masculine nouns) instead of the usual la: el álgebra. This includes the contracted forms al and del (instead of a la and de la, respectively): al álgebra, del álgebra.
- These nouns also usually take the indefinite article un that is otherwise used with masculine nouns (although the standard feminine form una is also permitted): un álgebra or una álgebra. The same is true with determiners algún/alguna and ningún/ninguna, as well as for numerals ending with 1 (e.g., veintiún/veintiuna).
- However, if another word intervenes between the article and the noun, the usual feminine singular articles and determiners (la, una etc.) must be used: la mejor álgebra, una buena álgebra.
- If an adjective follows the noun, it must agree with the noun's gender regardless of the article used: el álgebra única, un(a) álgebra buena.
- In the plural, the usual feminine singular articles and determiners (las, unas etc.) are always used.
Derived terms
Further reading
- “álgebra”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.7, Royal Spanish Academy [Spanish: Real Academia Española], 2023 November 28