This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
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UnderBar

UnderBar[expr]
displays with a bar under expr.
  • UnderBar[expr] can be entered using Ctrl++ and _.
  • UnderBar[expr] remains unchanged by evaluation.
  • The bar extends the full length of expr.
Type Ctrl++ and then _ to enter directly:
In[1]:=
Click for copyable input
Out[1]=
 
Type Ctrl++ and then _ to enter directly:
In[1]:=
Click for copyable input
Out[1]=
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