Difference between revisions of "Manuals/calci/FACT"

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*where, <math>N</math> is a non-negative number whose factorial is to be found.
 
*where, <math>N</math> is a non-negative number whose factorial is to be found.
  
FACT() calculates the factorial of a number '''N''' as 1*2*.....*N.
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FACT() calculates the factorial of a number <math>N</math> as 1*2*.....*<math>N</math>.
  
 
== Description ==
 
== Description ==
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e.g. FACT(3) displays '''6''' as a result.
 
e.g. FACT(3) displays '''6''' as a result.
  
*The factorial of a number '''N''' is the product of all positive integers, less than or equal to '''N'''. 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 X (N-1) X (N-2) X ..... 1</MATH>
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<math>N! = N X (N-1) X (N-2) X ..... 1</math>
  
*<math>N</math> should be a positive integer. Else Calci displays #NUM error message.
+
*<math>N</math> should be a positive integer. Else Calci displays #N/A error message.
 
*If <math>N</math> is not an integer, it is truncated to calculate the factorial.
 
*If <math>N</math> is not an integer, it is truncated to calculate the factorial.
 
*The factorial of series of numbers can be calculated as -
 
*The factorial of series of numbers can be calculated as -

Revision as of 16:57, 11 January 2014

FACT(N)

  • where, 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

See Also

References