When you start typing the name of a function, a popup menu shows possible completions. Hover over a function name and click the information icon () to get help on that function:
In Existing Code...
To get help on any function that appears in code, hover over the function name and click the information icon in the popup menu:
Alternatively, click a function name and press :
In the Documentation Center...
Choose Help▶Wolfram Documentation or type , enter the function name in the search field and press :
When Writing Code...
When you start typing the name of a function, a popup menu shows possible completions. Hover over a function name and click the information icon () to get help on that function in the sidebar:
In Existing Code...
To get help on any function that appears in code, hover over the function name and click the information icon in the popup menu. Help appears in the sidebar:
In the Documentation Center...
Type the name of a function in the search field followed by :
In the Documentation Center...
Tap the documentation icon to open the Documentation Center and enter the function name in the search field:
) to get help on that function:
:
, enter the function name in the search field and press 
:
) to get help on that function in the sidebar:
:
