E-8
Note:  • If the calculation becomes longer than the screen width during 
input, the screen will scroll automatically to the right and the  ] indicator will 
appear on the display. When this happens, you can scroll back to the left by 
using  d and  e to move the cursor.  •  When Linear Display is selected, 
pressing  f will cause the cursor to jump to the beginning of the calculation, 
while  c will jump to the end.   • When Natural Display is selected, pressing 
 e while the cursor is at the end of the input calculation will cause it to jump 
to the beginning, while pressing  d while the cursor is at the beginning will 
cause it to jump to the end.  • You can input up to 99 bytes for a calculation. 
Each numeral, symbol, or function normally uses one byte. Some functions 
require three to 13 bytes.  • The cursor will change shape to  k when there are 
10 bytes or less of allowed input remaining. If this happens, end calculation 
input and then press  =. 
 
  Calculation Priority Sequence
  The priority sequence of input calculations is evaluated in accordance with the 
rules below. When the priority of two expressions is the same, the calculation 
is performed from left to right. 
 1st  Parenthetical expressions 
 2nd 
 Functions that require an argument to the right and a closing 
parenthesis “)” following the argument. 
 3rd 
 Functions that come after the input value ( 
x  
2 
,  x  
3 
,  x  
–1 
,  x !, °’ ”, °,  
r 
,  
g 
, 
%, '
t), powers ( x  ^), roots ( ") 
 4th  Fractions 
 5th 
 Negative sign (–), base-
n symbols (d, h, b, o)
   Note:  When squaring a negative value (such as –2), the value 
being squared must be enclosed in parentheses ( (- 2  )w
=). Since  
x  
2 
 has a higher priority than the negative sign, 
inputting  - 2  w= would result in the squaring of 2 and then 
appending a negative sign to the result. Always keep the priority 
sequence in mind, and enclose negative values in parentheses 
when required. 
 6th 
   STAT Mode estimated values ( m,  n,  m
1 
,  m
2 
) 
 7th  Multiplication where the multiplication sign is omitted 
 8th  Permutation ( n P r ), combination ( n C r ) 
 9th 
 Multiplication, division ( × , ÷) 
 10th  Addition, subtraction (+, –) 
 11th  Logical AND (and)
 12th  Logical OR, XOR, XNOR (or, xor, xnor)
  Inputting with Natural Display
  Selecting Natural Display makes it possible to input and display fractions 
and certain functions ( 
x  
2 
,  x  
3 
,  x  ^,  ),  #,  ",  x  
−1 
, 10^, e^, Abs) just as they 
are written in your textbook.
   
2 + 
'
2
1 + 
'
2
 B
  
     ' 2  +! 2  ee 1  +! 2  = 
  
  
  
   Important:   • Certain types of expressions can cause the height of a 
calculation formula to be greater than one display line. The maximum 
MathMath