What do you call the functions that make a composite function.
Example : $e^{\sin x} $ is made up of $\sin x$ in the argument of $e^x$
So what are $\sin x$ and $e^x$ called here in this context? Basic functions or something?
(Please don't tell me the former is trig and latter is exponential function, I know that, but that's not what I'm asking here, please try to understand)
Hope I made myself clear.