Final answer:
To type the composition of functions symbol, use alternative notations like f(g(x)) or f ◦ g, special character tools, or LaTeX commands such as \circ.
Step-by-step explanation:
Typing the composition of functions symbol, which is often denoted as (f ∘ g) where ∘ represents composition, involves using a specific notation. On a computer, you cannot always type this symbol directly from your keyboard. However, you can often use alternative notations such as f(g(x)) or f ◦ g for composition when typing in a text editor. If you need to type the actual symbol, you might use a special character insertion tool or, in certain software like LaTeX, you could use the command \circ to represent it.
In programs like Microsoft Word, you can insert the composition symbol by using the Insert Symbol feature, selecting the symbol from the list provided, or using the character code. If you are using LaTeX, the command \circ is the professional method to type the composition of functions symbol.