Difference between revisions of "Manuals/calci/FACTORIAL"

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*[[Manuals/calci/FACTDOUBLE | FACTDOUBLE]]
 
*[[Manuals/calci/FACTDOUBLE | FACTDOUBLE]]
 
*[[Manuals/calci/FACTUNTIL | FACTUNTIL ]]
 
*[[Manuals/calci/FACTUNTIL | FACTUNTIL ]]
 +
*[[Z_API_Functions | List of Main Z Functions]]
 +
*[[Z3 |  Z3 home ]]
  
 
==References==
 
==References==
 
*[http://en.wikipedia.org/wiki/Factorial Factorial]
 
*[http://en.wikipedia.org/wiki/Factorial Factorial]

Revision as of 15:46, 9 March 2017

FACTORIAL (Number)


  • is any positive integer.

Description

  • This function is showing the result of factorial of a number.
  • Factorial means the result of multiplying a sequence of descending natural numbers down to 1.
  • In , is any positive integer.
  • So the factorial is defined for a positive integer n as:

.

  • For example 4!=4*3*2*1 = 24.
  • The given number will truncated to integer if the given number is in Decimal.
  • This function will returns the result as NaN when the given number is in negative.

Examples

  1. FACTORIAL(9) = 362880
  2. FACTORIAL(4.3) = 24
  3. FACTORIAL(54) = 2.308436973392414e+71
  4. FACTORIAL(-3) = NaN

See Also

References