Casio CLASSPAD 330 3.04 - Page 130

20060301
I
Logarithmic Functions (log, ln) and Exponential Functions (
e
, ^,
I
)
Problem
Use this keyboard:
Operation
mth abc cat 2D
log1.23 (log
10
1.23) =
0.08990511144
G
Func
G
J
1.23
U
or
5
10
C
1.23
U
ln90 (log
e
90) = 4.49980967
G
Func
G
(
90
U
or
5
L
C
C
90
U
log
3
9 = 2
G
Func
G
J
3

9
U
or
5
3
C
9
U
10
1.23
= 16.98243652
G
MATH Cmd
G
10
Y
1.23
U
e
4.5
= 90.0171313
G
MATH Func
G
C
4.5
U
or
0
4.5
U
(–3)
4
= (–3)
s
(–3)
s
(–3)
s
(–3) = 81
G
MATH Cmd
G


3

Y
4
U
–3
4
= – (3
s
3
s
3
s
3) = –81
G
MATH Cmd
G

3
Y
4
U
7
123 (= 123 )
= 1.988647795
G
MATH Cmd
G
123
Y

1

7
U
or

7
C
123
U
2 + 3
s
3
64 – 4 = 10
G
MATH Cmd
G
2

3

64
Y

1

3

4
U
or

2

3


3
C
64
C

4
U
Can be omitted.
Tip
• ^ and
8
h:
have a higher calculation priority sequence than
s
and ÷.
2-4-3
Function Calculations
1
—
7