Difference between revisions of "Manuals/calci/FACT"
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*The factorial of a number <math>N</math> is the product of all positive integers, less than or equal to <math>N</math>. It is calculated as - | *The factorial of a number <math>N</math> is the product of all positive integers, less than or equal to <math>N</math>. It is calculated as - | ||
| − | <math>N! = N | + | <math>N! = N * (N-1) * (N-2) * ..... 1</math> |
*<math>N</math> should be a positive integer. Else Calci displays #N/A error message. | *<math>N</math> should be a positive integer. Else Calci displays #N/A error message. | ||
Revision as of 17:59, 11 January 2014
FACT(N)
- where, is a non-negative number whose factorial is to be found.
is a non-negative number whose factorial is to be found.FACT() calculates the factorial of a number as 1*2*.....*.
Description
FACT(N)
e.g. FACT(3) displays 6 as a result.
- The factorial of a number is the product of all positive integers, less than or equal to . It is calculated as -
- should be a positive integer. Else Calci displays #N/A error message.
- If is not an integer, it is truncated to calculate the factorial.
- The factorial of series of numbers can be calculated as -
e.g. FACT(1..5) calculates factorial of numbers from 1 to 5 and displays result as 1 2 6 24 120.
Examples
| Function | Output |
| FACT(6) | 720 |
| FACT(4.7) | 24 |
| FACT(0) | 1 |
| FACT(1.1) | 1 |