### Exponentiation

On a Casio calculator you can perform exponentiations with the key

##### Example 1

To calculate 23 = 8

 2 ∧ 3 = 2∧3            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 = -2∧4          -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 = e∧π  23.14069263

##### Example 6

To calculate 21 = 2

 2 ∧ 1 = 2∧1            2.

##### Example 7

To calculate 20 = 1

 2 ∧ 0 = 2∧0            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∧(2∧3)         256.