Difference between revisions of "Manuals/calci/FACT"
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− | =FACT( | + | =FACT(Number)= |
− | * | + | *<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>. | ||
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<math>N! = N * (N-1) * (N-2) * ..... 1</math> | <math>N! = N * (N-1) * (N-2) * ..... 1</math> | ||
− | *If <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> | + | *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'''. |
Revision as of 15:51, 25 June 2018
FACT(Number)
- is a positive integer 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 -
- 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) | 24 |
FACT(0) | 1 |
FACT(1.1) | 1 |
Related Videos
See Also
References