Question

is (f * g)(x) = f(x) * g(x) ?

Answer 1

Do you mean \[(f\circ g)(x) = f(x) \cdot g(x)\]?

Answer 2

yes, I didn't know how to make that character

Answer 3

Ah. No problem. But know it doesn't mean that.

Answer 4

\[(f\circ g)(x) = f(g(x))\]

Answer 5

Thanks!

Answer 6

the lowercase o works good for that as well

Answer 7

(f o g)(x) = f(g(x))

Answer 8

phah. Lower case o indeed

Answer 9

:)