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  • SubscriptBox[ x , y ] represents in input and output.
  • Inside \( ... \) SubscriptBox[ x , y ] can be input as x \_ y.
  • In a notebook a SubscriptBox can be created using - or _. moves out of the subscript.
  • In StandardForm and InputForm, SubscriptBox[ x , y ] is interpreted on input as Subscript[ x , y ].
  • The baseline of SubscriptBox[ x , y ] is taken to be the baseline of x.
  • SubscriptBox[ x , y ] is usually output with y in a smaller font than x.
  • With the option setting LimitsPositioning->True y is placed in an underscript position when the whole SubscriptBox is displayed large, and in a subscript position when it is displayed smaller.
  • In StandardForm, explicit SubscriptBox objects are output literally. You can use DisplayForm to see the display form of such objects.
  • See the Mathematica book: Section 2.8.10.
  • See also: SuperscriptBox, SubsuperscriptBox, UnderscriptBox, ScriptSizeMultipliers.