_ - Tex Command

NAME

_ - used to indicate subscripts; used for limits on large operators.

{ <#1> _ #2}

^ is used to indicate exponents; used to indicate subscripts; used for limits on large operators.

Input	Description
#1	argument #1 is optional
#2	use braces in #2, as needed, to clarify what is the exponent.

```
_2 
```
$ _2 $
```
x_i^2 
```
$ x_i^2 $
```
{x_i}^2 
```
$ {x_i}^2 $
```
x_{i^2} 
```
$ x_{i^2} $
```
x_{i_2} 
```
$ x_{i_2} $
```
{x_i}_2 
```
$ {x_i}_2 $
```
^a_bx^c_d 
```
$ ^a_bx^c_d $
```
\sum_{n=1}^\infty 
```
$ \sum_{n=1}^\infty $
```
\underbrace{x+\cdots+x} 
_{n\text{ times}}
```
$ \underbrace{x+\cdots+x} _{n\text{ times}} $