Fact() returns the factorial of a positive integer x.
Syntax:
Fact(x)
Return data type: integer
Limitations:
If the number x is not an integer, it will be truncated. Non-positive numbers will return NULL.
Examples and results:
| Examples | Results |
|---|---|
|
Fact( 1 ) |
Returns 1 |
|
Fact( 5 ) |
Returns 120 ( 1 * 2 * 3 * 4 * 5 = 120 ) |
|
Fact( -5 ) |
Returns NULL |
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