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fx-82MS      fx-9860GII


x2

On a Casio calculator you can compute a square

x2

 


Example 1

To calculate 32 = 9

 3  x2 =  32
           9.

and you get the same result with

 3   2  =  3^2
           9.

as 32 = 3 × 3 = 9

 3  ×  3  =  3×3
           9.

 


Example 2

To calculate (−4)2 = 16 where parentheses are needed

( (−)  4  ) x2 =  (-4)2
          16.

what you can enter as

(  4  ) x2 =  (-4)2
          16.

Take care, because −42 = −16

 4  x2 =  -42
         -16.

 


Example 3

To calculate 02 = 0

 0  x2 = 02                   
0.   

 


Example 4

To calculate sin2 (¾π) = 0,5

sin  •   7   5         EXP = x2 = Ans2               
0.5   

 


Example 5

To calculate 32 + 42 = 25 

 3  x2 +  4  x2 = 32+42              
25.   

and continue with 25 = 5

Ans = √Ans               
5.   

 


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