FACT FIB

FACTDOUBLE

FACTDOUBLE —

Synopsis

FACTDOUBLE(number)

Description

FACTDOUBLE function returns the double factorial of a number, i.e., x!!.

  • If number is not an integer, it is truncated.
  • If number is negative FACTDOUBLE returns #NUM! error.
  • This function is Excel compatible.

Examples

FACTDOUBLE(5) equals 15.

See also

FACT.

FACT FIB