E-7
 4 ssin30 s(30 + 10 s3) = 120
 4 Q 30  30  10  3  
 *
1
 *
2
  *
3
*
1
  Input of the closing parenthesis is required for sin, sinh, and other functions 
that include parentheses. 
*
2
  These multiplication symbols (s) can be omitted. A multiplication symbol 
can be omitted when it occurs immediately before an opening parenthesis, 
immediately before sin or other function that includes parentheses, 
immediately before the Ran# (random number) function, or immediately 
before a variable (A, B, C, D, M, X, Y), P or 
e. 
*
3
 The closing parenthesis immediately before the  operation can be 
omitted. 
  Input example omitting *
2
 and *
3
 operations in the above  
 example.
  4 Q 30  30  10  3  
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 B and C to move the cursor.  •  When Linear Display is selected,  
pressing D will cause the cursor to jump to the beginning of the calculation, 
while A will jump to the end.   • When Natural Display is selected, pressing 
C while the cursor is at the end of the input calculation will cause it to jump 
to the beginning, while pressing B 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 I 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
, 
%), powers (
x9), roots ()
4th
Fractions
5th
Negative sign (–)
Note: When squaring a negative value (such as –2), the value  
being squared must be enclosed in parentheses ( 2 7;
). Since 
x
2
 has a higher priority than the negative sign, 
inputting  2 7 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.