Difference between revisions of "Manuals/calci/FACT"
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| − | =FACT( | + | <div style="font-size:30px">'''FACT(Number)'''</div><br/> |
| − | + | *<math>Number</math> is a positive integer whose factorial is to be found. | |
| − | * | + | **FACT() calculates the factorial of a number <math>N</math> as 1*2*.....*<math>N</math>. |
| − | |||
| − | FACT() calculates the factorial of a number <math>N</math> as 1*2*.....*<math>N</math>. | ||
== Description == | == Description == | ||
| − | FACT( | + | FACT(Number) |
e.g. FACT(3) displays '''6''' as a result. | e.g. FACT(3) displays '''6''' as a result. | ||
| Line 13: | Line 11: | ||
*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> | + | *If <math>Number</math> is negative, Calci displays #N/A error message. |
| − | *If <math> | + | *If <math>Number</math> is not an integer, it is truncated to calculate the factorial. |
| + | *If <math>Number</math> is invalid, Calci displays #NULL error message. | ||
*The factorial of series of numbers can be calculated as - | *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'''. | e.g. FACT(1..5) calculates factorial of numbers from 1 to 5 and displays result as '''1 2 6 24 120'''. | ||
| Line 35: | Line 34: | ||
|- class="even" | |- class="even" | ||
| class="sshl_f" |FACT(4.7) | | class="sshl_f" |FACT(4.7) | ||
| − | | class="sshl_f" | | + | | class="sshl_f" |72.52763452022295 |
|- class="odd" | |- class="odd" | ||
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| class="sshl_f" |1 | | class="sshl_f" |1 | ||
|} | |} | ||
| + | |||
| + | ==Related Videos== | ||
| + | |||
| + | {{#ev:youtube|__P3061XGrk|280|center|FACTORIAL}} | ||
== See Also == | == See Also == | ||
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*[http://en.wikipedia.org/wiki/Factorial Factorial] | *[http://en.wikipedia.org/wiki/Factorial Factorial] | ||
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| + | |||
| + | |||
| + | |||
| + | *[[Z_API_Functions | List of Main Z Functions]] | ||
| + | |||
| + | *[[ Z3 | Z3 home ]] | ||
Latest revision as of 04:23, 14 April 2022
FACT(Number)
- is a positive integer whose factorial is to be found.
- FACT() calculates the factorial of a number as 1*2*.....*.
is a positive integer whose factorial is to be found.
as 1*2*.....*Description
FACT(Number)
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 -
- If is negative, Calci displays #N/A error message.
- If is not an integer, it is truncated to calculate the factorial.
- If is invalid, Calci displays #NULL error message.
- 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) | 72.52763452022295 |
| FACT(0) | 1 |
| FACT(1.1) | 1 |
Related Videos
See Also
References