E-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  =
1
7
• Example 3: 
7
 
123  ( = 123  )  
1.988647795
7 A H 123 =
• Example 6:                 
12
R 
3
 a , 
4
 a T a =
1  
  1
3       4
1
• Example 7: 8!  
40320
8 A f =