Getting Started 9
Table 1-2 RPN Example
Keys Display/Description
3R4; 
Enters numbers and operation from the first set 
of parentheses. The sum, 7, is displayed and 
stored in the X-register.
5R6;
Enters the numbers and operation from the 
second set of parentheses. The sum, 11, is 
stored in the X-register and displayed, and 7 
moves up to the Y-register.
Y
Finishes the operation and displays the results. 
Stores 77 in the X-register.