Manuals/calci/FACTORIAL

FACTORIAL (Number)

• Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 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 Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle FACTORIAL (Number)} ,Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Number} is any positive integer.
• So the factorial Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle n!} is defined for a positive integer n as:

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle n!=n*(n-1)*...2*1} .

• 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

Related Videos

Factorials

See Also

• FACTDOUBLE
• FACTUNTIL
• List of Main Z Functions
• Z3 home

References

• Factorial

• List of Main Z Functions

• Z3 home