RowBox

RowBox[{box₁,box₂,…}]

is a low-level box construct that represents a row of boxes or strings in a notebook expression.

Details

RowBox is generated by functions like Row. Except for low-level notebook expression manipulation, RowBox should not need to be used directly.
RowBox objects are generated automatically to correspond to each operator and its operands in input given as \(input\).
The default arrangement of RowBox objects in \(input\) is based on operator precedence. Additional \(…\) can be inserted like parentheses to specify different arrangements of RowBox objects.
The boxes or strings in a RowBox are output in a row with their baselines aligned.
In InputForm, RowBox objects are output using \(…\).
In StandardForm, explicit RowBox objects are output literally. You can use DisplayForm to see the display form of such objects.

Examples

Display a row of letters and plus signs:

Wolfram Language code: RowBox[{"a", "+", "b", "+", "c"}]//DisplayForm

Display a row of objects within paired brackets:

Wolfram Language code: RowBox[{"{", RowBox[{"1", ",", UnderoverscriptBox["∑", "0", "n"], SuperscriptBox["s", "n"]}], "}"}]//DisplayForm

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