Where is @ vs. @* explained in documentation ...

[marktuttle]

If I’m composing functions sometimes functions on the left need @* instead of just @

Where is this explained in the Documentation?

[rohitnamjoshi]

Hi Mark,

@ is not composition. f@x is the Prefix form of f[x]. f @* g is the Composition of f and g.

[marktuttle]

Ah, yes.
Thank you.
The problem is in finding the documentation for Composition!

[sghuisman (Sander Huisman)]

Have a look here for a comprehensive overview:

[CALL] Most common pitfalls for beginners of Wolfram Language

What does @#(%=<[!} et cetera mean? Mathematica has a very extensive set of characters used as its syntax. I will try to list most (all?) of them here. Non-standard characters If the symbol appears to be a non-standard character one can wrap the symbol in quotes and perform FullForm on it to get the name of the symbol. Example: [ScreenShot2017-04-27at21.36.42.png] gives: "\[Function]" Brackets These syntax elements all appear in pairs: (...) Circumfix. Used to group expressions …

[marktuttle]

Thank you; hadn’t seen this.
Always good to review this stuff.