fx-82MS fx-82TL fx-9860GII TI-83
^
On a Casio calculator you can perform exponentiations
∧
or via the catalog as
CATALOG P INPUT SHIFT 4 ^ F1
Example 1
To calculate 23 = 8
23 2 ∧ 3 EXE 8
Example 2
To enter 00
Ma ERROR Press:[EXIT] 0 ∧ 0 EXE EXIT 00
although it is determined by definition that 00 ≝ 1. Take that as a warning.
Example 3
To calculate (-2)4 = 16 where parentheses are required
(-2)4 ( (–) 2 ) ∧ 4 EXE 16
as -24 = -16
-24 (–) 2 ∧ 4 EXE -16
Example 4
To calculate 2−1 = 0.5 where you have a negative exponent
2-1 2 ∧ (–) 1 EXE 0.5
or as
x⁻¹ J 2-1 2 SHIFT ) EXE 0.5
Example 5
To calculate eπ = 23.1406…
e x C π ٬٬ eπ SHIFT ln SHIFT EXP EXE 23.14069263
Example 6
To calculate 21 = 2
21 2 ∧ 1 EXE 2
Example 7
To calculate 20 = 1
20 2 ∧ 0 EXE 1
Example 8
To calculate 31/2 = 1.7320…
31÷2 3 ∧ 1 ÷ 2 EXE √3
because after all, you can also calculate that as √3 = 1.7320...
√ r SHIFT x² 3 EXE F↔D √3 1.732050808
Example 9
To calculate 
223 2 ∧ 2 ∧ 3 EXE 256
Example 10
To calculate i i = 0.2078...
i Z i Z ii SHIFT 0 ∧ SHIFT 0 EXE 0.2078795764