# FACTDOUBLE

### Definition of FACTDOUBLE

Returns the "double factorial" of a number.

### Sample Usage

`FACTDOUBLE(6)`

`FACTDOUBLE(A2)`

### Syntax

`FACTDOUBLE(value)`

• `value` - The number or reference to a number whose double factorial will be calculated and returned.

### Notes

• The double factorial is similar to the factorial, except instead of multiplying by each integer value less than or equal to the provided value, it decrements by 2. Thus the double factorial of 8 is 8642 and the double factorial of 7 is 7531.

• If a number or reference to a number with a decimal part is provided to `FACTDOUBLE`, the decimal part will be silently truncated before calculation.

`MULTINOMIAL`: Returns the factorial of the sum of values divided by the product of the values' factorials.

`FACT`: Returns the factorial of a number.

`COMBIN`: Returns the number of ways to choose some number of objects from a pool of a given size of objects.

### Excellentable will generate the outcome when hitting enter.

A
B
C
1
State
 Population
Total area in mi2
Land area in mi2
Water area in mi2
2
Alabama
4833722
52,420 (135,767)
3
735132
665,384 (1,723,337)
4
Arizona
6626624
113,990 (295,233)
5
Arkansas
2959373
53,179 (137,733)
6
California
38332521
163,695 (423,968)
7
5268367
104,094 (269,602)
8
Connecticut
3596080
5,543 (14,356)
9
Delaware
925749
2,489 (6,446)
10
Florida
19552860
65,758 (170,312)
11
Georgia
9992167
59,425 (153,910)
12
Hawaii
1404054
10,932 (28,314)
13
Idaho
1612136
83,569 (216,443)
14
15
15
D
E
F
1
House seat(s)
2
50,645 (131,170)
1,775 (4,597)
7
3
570,641 (1,477,950)
94,743 (245,383)
1
4
113,594 (294,207)
396 (1,026)
9
5
52,035 (134,770)
1,143 (2,960)
4
6
155,779 (403,466)
7,916 (20,502)
53
7
103,642 (268,432)
452 (1,171)
7
8
4,842 (12,541)
701 (1,816)
5
9
1,949 (5,048)
540 (1,399)
1
10
53,625 (138,888)
12,133 (31,424)
27
11
57,513 (148,958)
1,912 (4,950)
14
12
6,423 (16,635)
4,509 (11,678)
2
13
82,643 (214,044)
926 (2,398)
2
14
15

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