fx-82MS fx-82TL fx-9860GII TI-83
LOG
On a Texas Instruments calculator you can calculate common logarithms of base 10
LOG
or via the CATALOG as
CATALOG ⎵ 2nd 0 ►log( ENTER
Example 1
To calculate log (1) = 0
LOG 1 ENTER log(1 0
because 100 = 1.
Example 2
To calculate log (1000) = 3
LOG 1 0 0 0 ENTER log(1000 3
because 103 = 1000.
Example 3
To calculate log (27,83) = 1,4445…
LOG 2 7 • 8 3 ENTER log(27.83 1.444513206
because 101,4444513206 = 27.83.
Example 4
To calculate log (0.1) = -1
LOG 0 • 1 ENTER log(0.1 -1
because 10−1 = 0.1.
Example 5
To calculate log (103) = 3 log (10) = 3 × 1 = 3
LOG 1 0 ^ 3 ENTER log(10^3 3
Example 6
To calculate log3 (9) = 2
LOG 9 ENTER ÷ LOG 3 ENTER Ans/log(3 2
Details
The functions log and 10x are on the same key. That is so because these functions have to do with the number 10.