$f \circ g$
Kidplayer_666, f o g(x)
spacesweedkid27, deleted_by_author
Kidplayer_666, God dammit, I always mix it up
spacesweedkid27, Same I had to look it up lul
kpw, What are you talking about? OP got it right: https://en.m.wikipedia.org/wiki/Function_composition
Cort, Yeah, I think he’s got it backwards too, but it’s been a decade since I took calc
Zink, 
This is algebra as far as my school system believed
DarkPhysix, I always remembered the \circ character to be like an “o” that stands for “of”
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