Built-in Mathematica Symbol

SubsuperscriptBox

SubsuperscriptBox[x, y, z]
is the low-level box representation for

in notebook expressions.

SubsuperscriptBox is the low-level representation of Subsuperscript. Except for low-level notebook expression manipulation, SubsuperscriptBox should not need to be used directly.

In a notebook a SubsuperscriptBox can be created by using Ctrl+- or Ctrl+_ to move to the subscript, then Ctrl+% to move to the superscript. Ctrl+Space moves out of the subscript or superscript position.

In StandardForm, SubsuperscriptBox[x, y, z] is interpreted on input as Power[Subscript[x, y], z].

SubsuperscriptBox[x, y, z] is usually output with y and z in a smaller font than x.

In StandardForm, explicit SubsuperscriptBox objects are output literally. You can use DisplayForm to see the display form of such objects.

Display a letter with a subscript and a superscript:

Out[1]//DisplayForm=

A SubsuperscriptBox form is typically interpreted as a power of a Subscript expression:

Out[2]//FullForm=

The standard formatting for a power of a Subscript expression uses SubsuperscriptBox:

Out[1]//FullForm=