What does the small circle symbol in (f◦g)(x) mean

pawball

have not seen this anywhere I've looked, anyone know?

vsage

It's function composition notation. Same thing as f(g(x))

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pawball	What does the small circle symbol in (f◦g)(x) mean Tweet have not seen this anywhere I've looked, anyone know?

vsage	It's function composition notation. Same thing as f(g(x))