Manuals/calci/FACTUNTIL

FACTUNTIL (Number,NumberTill)

• $Number$ is the minimum number.
• $NumberTill$ is the maximum number.

Description

• This function shows the factorial value up to the mentioned value.
• In $FACTUNTIL(Number,NumberTill)$ , $Number$ is the value to start and $NumberTill$ is the maximum limit value.
• Factorial means the result of multiplying a sequence of descending natural numbers down to 1.
• So the factorial $n!$ is defined for a positive integer n as:

$n!=n*(n-1)*...2*1$.

• For example FACTUNTIL(9,4) calculates the value of 9*8*7*6*5.

Examples

1. FACTUNTIL(10,7) = 720
2. FACTUNTIL(54,45) = 1929772710028800
3. FACTUNTIL(9,6.2) = 504

See Also

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

References

• Factorial