– 19 –
k Common and Natural Logarithms/
Antilogarithms
• Example 1: log 1.23
0.089905111
R 1.23 =
• Example 2: In 90 (= log
e
90) =
4.49980967
T 90 =
ln e
1
T p P =
• Example 3: e
10
22026.46579
A U 10 =
• Example 4: 10
1.5
31.6227766
A Q 1.5 =
• Example 5: 2
3
0.125
2 W D 3 =
• Example 6: (2)
4
16
R
D 2 T W
4
=
• Negative values inside of calculations must be enclosed
within parentheses. For details, see “Order of Operations.”
k Square Roots, Cube Roots, Roots,
Squares, Cubes, Reciprocals,
Factorials, Random Numbers,
π
, and
Permutation/Combination
• Example 1: 2 3 5
5.287196909
L 2 + L 3 - L 5 =
• Example 2:
3
5
3
27
–1.290024053
A D 5 + A D R D 27
T =
• Example 4: 123 30
2
1023
123 + 30 K =
• Example 5: 12
3
1728
12 N =
• Example 7: 8!
40320
8 A f =
1
7
• Example 3:
7
123 ( = 123 )
1.988647795
7 A H 123 =
1
1
3 4
1
• Example 6:
12
R
3
a ,
4
a T a =
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