Frecha (tipografía)

Frecha
Signos ortográficos
punto ( . )

coma ( , )
punto e coma ( ; )
dous puntos ( : )
puntos suspensivos ( )
signo de interrogación ( ? )
signo de exclamación ( ! )
comiñas ( « » ) ( ‘ ’ ) ( “ ” )
parénteses ( ( ) )
corchetes ( [ ] )
raia ( )
guión ( )
barra diagonal ( / )
apóstrofo ( ' ) ( )
acento ( ◌́ )
  acento agudo ( ◌́ )
  acento circunflexo ( ◌̂ )
  acento grave ( ◌` )
diérese ( ◌̈ )
til ( ~ )
espazo (   )

Outros signos auxiliares
antilambda ( < > )

antígrafo ( )
arroba ( @ )
asterisco ( * )
asterismo ( )
barra inversa ( \ )
barra vertical ( | ) ( ¦ )
cancelo ( # )
chaves ( { } )
cruz ( ) ( )
e comercial ( & )
fin de artigo ( )
frecha ( )
grao ( ° )
guión baixo ( _ )
ídem ( )
indicador ordinal ( º ) ( ª )
man ( )
moeda ( ¤ )
parágrafo ( § )
porcentaxe ( % )
prima ( ) ( ) ( )
punto de lista ( )
punto medio ( · )
símbolos lóxicos
( ) ( ¬) ( ) ( ) ( )
símbolos matemáticos
( + ) ( ) ( × ) ( ÷ ) ( = ) ( ± )
símbolos monetarios
( ¤ ) ( $ ) ( ¢ ) ( £ ) ( ) ( ¥ ) ( )
símbolos de propiedade intelectual
( © ) ( ) ( ® ) ( ) ( ) ( Ⓜ )

A frecha[1] é un signo auxiliar da escrita que reproduce esquematicamente a arma do mesmo nome (→).

Usos

  • Na marxe dun texto, para atraer a atención do lector sobre un elemento considerado interesante. Con esta mesma función usábase tamén no pasado o signo da man.
  • Dentro das obras gramaticais, enciclopédicas e lexicográficas, para remitir a outro capítulo, lema ou epígrafe, en substitución de véxase.
  • En diagramas, mapas conceptuais ou textos similares, para indicar unha secuencia lóxica ou cronolóxica, unha relación de causa-efecto, implicación, derivación etc.

Usos en Matemáticas

O símbolo frecha emprégase en Matemáticas en diferentes situacións.

  • Pode indicar unha aplicación ou unha función ().
  • Nos límites indica a que valor tende a variable ().
  • Situado sobre unha ou dúas letras indica un vector ().
  • Indica unha implicación lóxica ().

Notas

  1. González Rei, Begoña (2004). Galinova Editorial, ed. Ortografía da lingua galega. A Coruña. ISBN 84-9737-041-4. 

Véxase tamén

Bibliografía

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