This is documentation for Mathematica 3, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)
 Documentation / Mathematica / Other Information / 2D Expression Input / Entering 2D Expressions  /

Underscripts

How to type

Type the expression that will have an underscript.

Type x

Create an underscript by pressing the Control key and the = key (or the + key) at the same time.

Press = or +

Type an underscore into the placeholder (which is already selected).

Type _

Move the insertion point out of the underscript position up to the baseline by pressing the Control and Space keys at the same time.

Press

How to type

Press the Control key and the = key (or the + key) at the same time. This creates a pair of placeholders, one on the baseline and another in the underscript position.

Press = or +

Type an underscore into the placeholder in the underscript (which is already selected).

Type _

Press the Tab key to select the placeholder that is on the baseline.

Press Tab

Type the expression over the underscript.

Type x+y

Press Control-Space to get out of the underscripted expression.

Press

Another way to type

Type x+y

Select the expression. (You can select by dragging, by pressing Control-Dot repeatedly, or by clicking the expression repeatedly.)

Select x+y

Press the Control and + keys together to create a placeholder in the underscript position.

Press +

Type an underscore in the underscript position.

Type _

Press Control-Space to get up to the baseline.

Press

How to type

Type lim, press+

Type x

Press , type - >, press

Type a, press

Type f[x]