คู่มือผู้ใช้



   





  
1 
2
 


   ")" 
 
3
 

  (x
2
, x
3
, x
-1
, x!, °’ ”, °,
r
,
g
, %),  (
),
 ( )
4 
5 

 ((-))
6
 ST
AT (xˆ, yˆ, xˆ
1
, xˆ
2
)
7 



8
 (nPr),  (nCr)
9  (×),  (÷)
10  (+),  (−)

• 


   ( -2)  

 (
2 )



 x
2



 
2 

 2 



 
•   



52