三角函数 /sānjiǎo hánshù/ angolul

trigonometric function▼(a function of an angle)
noun
[UK: ˌtrɪ.ɡə.ˈnɒ.mə.tri ˈfʌŋk.ʃn̩] [US: ˌtrɪ.ɡə.ˈnɒ.mə.tri ˈfʌŋk.ʃn̩]