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BUILT-IN MATHEMATICA SYMBOL
FractionBox
FractionBox[x, y]
is a low-level formatting construct that represents 
in notebook expressions.
Details and Options
- Inside
can be input as 
. - In a notebook a FractionBox can be created using Ctrl+/. Ctrl+Space moves out of the fraction.
- In StandardForm and InputForm, FractionBox[x, y] is interpreted on input as
. - The axis of FractionBox[x, y] is taken to go through the fraction line. The baseline lies below the axis by the distance between the axis and the bottom of characters such as
in the current font. - The width of the fraction line can be given in x heights as the setting for the SpanLineThickness option in StyleBox.
- If FractionBox[x, y] does not fit on a single line, it is output as
. - In StandardForm, explicit FractionBox objects are output literally. You can use DisplayForm to see the display form of such objects.
New in 3
