20021201
k
Logarithmic Functions (log, ln) and Exponential Functions (
e
, ^,
k
)
Problem
Use this keyboard:
Operation
mth
abc
cat
2D
log1.23 (log
10
1.23) =
Func
l
1.23
w
or
0.08990511144
)V
10
e
1.23
w
ln90 (log
e
90) = 4.49980967
Func
I
90
w
or
)V0
n
e
e
90
w
log
3
9 = 2
Func
l
3
,
9
w
or
)V
3
e
9
w
10
1.23
= 16.98243652
MATH
Cmd
10
{
1.23
w
e
4.5
= 90.0171313
MATH
Func
e
4.5
w
or
)Q
4.5
w
(–3)
4
= (–3)
×
(–3)
×
(–3)
×
MATH
Cmd
(
-
3
)
{
4
w
(–3) = 81
–3
4
= – (3
×
3
×
3
×
3) = –81
MATH
Cmd
-
3
{
4
w
7
123 (= 123
)
MATH
Cmd
123
{
(
1
/
7
w
or
= 1.988647795
)%
7
e
123
w
2 + 3
×
3
64 – 4 = 10
MATH
Cmd
2
+
3
*
64
{
(
1
/
3
)-
4
w
or
)
2
+
3
*
%
3
e
64
e
-
4
w
Can be omitted.
Tip
• ^ and
have a higher calculation priority sequence than
×
and
÷
.
2-4-3
Function Calculations
1
—
7
20030201
