Functions
FACTDOUBLE
Double factorial of a number
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When to use it
When should I use FACTDOUBLE?
Use FACTDOUBLE to compute the double factorial (product of all integers of the same parity up to n); used in combinatorics and physics.
Used in
Syntax
FACTDOUBLE(n)Examples
=FACTDOUBLE(6) // => 48
=FACTDOUBLE(7) // => 105
=FACTDOUBLE(8) // => 384