5.4 Algebraic functions
Common logarithm key
Calculates the logarithm with a base of 10.
Ex: 3
➔
0.477121254
Antilogarithm key
Calculates the antilogarithm with a base of 10.
Ex: 3
➔
1000
Natural logarithm key
Calculates the logarithm base e (e = 2.718281828).
Ex: 3
➔
1.098612289
Natural antilogarithm key
Calculates the antilogarithm base e of the displayed number.
Ex: 3
➔
20.08553692
Square (x
2
) key
Calculates a square of the number displayed.
Ex: To calculate 3
2
, press: 3
➔
9
Reciprocal (1/x) key
Calculates the reciprocal of the number displayed.
Ex: to calculate 1/8, press: 8
➔
0.125
8
log
2ndF
10
x
log
log
ln
ln
2ndF
e
x
ln
x
2
x
2
log
2ndF
1
/x
2ndF
10
x
2ndF
e
x
2ndF
1/x
5. Calculator
functions,
continued
