+0  
 
0
541
1
avatar

what is x-y

 Apr 29, 2014
 #1
avatar+28 
0

$${\mathtt{x}}{\mathtt{\,-\,}}{\mathtt{y}} = {\mathtt{x}}{\mathtt{\,-\,}}{\mathtt{y}}$$

.
 Apr 29, 2014

0 Online Users