NEG 
Calculates
the negative value of the number currently displayed.

SQT 
Calculates
the square root of the number currently displayed.

POW 
Calculates
the value of the number currently displayed raised to any
power. For example, to calculate 10 to the third
power, you would enter "10", select this button, then
enter "3" and press equal ("="). 
1/Y 
Calculates
the inverse of the number currently displayed (one divided by
the number).

< 
Deletes
the last digit entered. By pressing this multiple times, you can
backup and remove digits in the order they were entered.

SQR 
Calculates
the square of the number currently displayed. For
example, to calculate 10 squared, you would enter
"10", select this button, then enter "2" and
press equal ("="). 
C 
Clears
the calculator display. This does clear the calculator
memory.

EM 
Erases
the calculator memory. This does not erase the value
displayed.

M+ 
Add the
value currently displayed to the value stored in the calculator
memory. If there is no value stored in memory, this will
set it.

M 
Subtract
the value currently displayed from the value stored in the
calculator memory.

RM 
Recalls the value stored in calculator
memory and displays it.

% 
Calculates a percentage. For
example, to calculate 50 percent of 30, you would enter
"50", select this button, then enter "30"
and press equal ("=").
