U+2218, ∘
RING OPERATOR

[U+2217]
數學運算子
[U+2219]

跨語言

符號

  1. (數學) 複合函數的符號
    (g ∘ f )(x) = g(f(x))
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.