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Exponentiation

On a Casio calculator you can perform exponentiations with the key

 


Example 1

To calculate 23 = 8

 2   3  =  23
           8.

and you get this also for

 2  x3  23
           8.

 


Example 2

Enter 00

 0   0  = Math ERROR 
 

although it is determined per definition that 00 ≝ 1. Take that as a warning.

 


Example 3

To calculate (−2)4 = 16 where brackets are required

(  2  )  4  =  (-2)4
          16.

because −24 = −16

 2   4  =  -24
         -16.

 


Example 4

To calculate 2−1 = 0.5 where you have a negative exponent

 2  (−)  1  =  2-1
         0.5

 


Example 5

To calculate eπ = 23.1406…

  ln   EXP =  eπ
 23.14069263

 


Example 6

To calculate 21 = 2

 2   1  =  21
           2.

 


Example 7

To calculate 20 = 1

 2   0  =  20
           1.

 


Example 8

To calculate 31/2 = 1.7320…

 3  (  1  ÷  2  ) =  3(1÷2)
 1.732050808

what you can also calculate as √3 = 1.7320...

 3  =  √3
 1.732050808

 


Example 9

To calculate

 2  (  2   3  ) =  2(23)
        256. 

 


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