fx-82MS fx-82TL fx-9860GII TI-83
ex
On a TI calculator you can calculate powers of the number e
e x S 2nd LN
or via the catalog as
CATALOG ⎵
2nd 0 ►e^( ENTER
Example 1
To calculate e0 = 1
e x S 2nd LN e^( 0 ENTER e^(0 1
Example 2
To calculate e1 = 2.7182…
e x S 2nd LN e^( 1 ENTER e^(1 2.718281828
Example 3
To calculate eπ = 23.1406…
e x S π H 2nd LN 2nd ∧ ENTER e^(π 23.14069263
Example 4
To calculate ln (e2) = 2
e x S LN 2nd LN 2 ENTER ln(e^(2 2
Example 5
To calculate e(− π / 2) = 0.2078...
e x S π H 2nd LN (–) 2nd ∧ ÷ 2 ENTER e^(-π/2 .2078795764
Details
The functions ln and ex are on the same key. This makes sense because these functions all deal with the number e.