E-8
 5th 
 Negative sign (–) 
   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 (+, –) 
  Inputting with Natural Display
  Selecting Natural Display makes it possible to input and display fractions and 
certain functions (log,  
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 
allowable height of a calculation formula is two display screens (31 dots  ×  2). 
Further input will become impossible if the height of the calculation you are 
inputting exceeds the allowable limit.  • Nesting of functions and parentheses 
is allowed. Further input will become impossible if you nest too many functions 
and/or parentheses. If this happens, divide the calculation into multiple parts 
and calculate each part separately.
   Note:   When you press  = and obtain a calculation result using Natural 
Display, part of the expression you input may be cut off. If you need to view 
the entire input expression again, press  A and then use  d and  e to 
scroll the input expression. 
  
  Using Values and Expressions as Arguments 
 (Natural Display only) 
  A value or an expression that you have already input can be used as the 
  argument of a function. After you have input 
7
6
 , for example, you can make 
it the argument of  ', resulting in
7
6
 .
  
    To input 1 + 
7
6
 and then change it to 1 +
7
6
 B
  
  
       1  + 7  ' 6 
  
  
     dddd1Y(INS) 
  
MathMath
MathMath
MathMath