Table of Contents
Advertisement
Appendix
Function
ln x
-
×
99
≤ x < 1
1
10
log x
x
e
×
100
-
< x ≤ 230.2585092
1
10
x
10
×
100
-
1
10
< x < 100
-
1
×
100
x
|x| < 1
10
2
×
x
50
|x| < 1
10
×
0 ≤ x < 1
10
x
n!
-
0.5 ≤ n ≤ 69.5
When a > 0:
×
100
-
1
10
< b log a < 100
When a = 0:
b
×
a
(^)
0 < b < 1
10
When a < 0:
b is an integer, or
-
However,
1
When b > 0:
×
-
100
1
10
<
When b = 0:
×
a
0 < a < 1
10
b
When b < 0:
a is an odd number, or
-
However,
1
0 ≤ r ≤ n ≤ 9999999999
When r < _ n 2 :
nPr
When _ n 2 ≤ r :
0 ≤ r ≤ n ≤ 9999999999
nCr
_
_
n!
< 10
100
(n-
r)!
242
Calculation range
×
100
10
100
100
1
is an odd number (b ≠ 0)
b
×
100
10
< b log |a| < 100
1
log b < 100, a ≠ 0
a
100
1
is an integer (a ≠ 0)
a
1
×
100
10
<
log |b| < 100
a
_
_
n!
100
< 10
(r-1)!
(n-r)!
_
_
n!
100
< 10
r
r!(n-
-1)!
Notes
ln x = log
x
e
e . = . 2.71828...
x ≠ 0
n is an integer or
+
integer
0.5
b
b·log a
a
= 10
1
log b
a
= 10
b
a
n and r are positive
integers
Advertisement
Table of Contents
