Class FactDouble
java.lang.Object
org.apache.poi.ss.formula.functions.Fixed1ArgFunction
org.apache.poi.ss.formula.functions.FactDouble
- All Implemented Interfaces:
FreeRefFunction
,Function
,Function1Arg
Implementation for Excel FACTDOUBLE() function.
Syntax:
FACTDOUBLE (number)
Returns the double factorial of a number.
Number is the value for which to return the double factorial. If number is not an integer, it is truncated.
Remarks
- If number is nonnumeric, FACTDOUBLE returns the #VALUE! error value.
- If number is negative, FACTDOUBLE returns the #NUM! error value.
- Author:
- cedric dot walter @ gmail dot com
-
Field Summary
Fields -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionevaluate
(ValueEval[] args, OperationEvaluationContext ec) static BigInteger
factorial
(int n) Methods inherited from class org.apache.poi.ss.formula.functions.Fixed1ArgFunction
evaluate
-
Field Details
-
instance
-
-
Constructor Details
-
FactDouble
public FactDouble()
-
-
Method Details
-
evaluate
Description copied from interface:Function1Arg
- Specified by:
evaluate
in interfaceFunction1Arg
-
factorial
-
evaluate
- Specified by:
evaluate
in interfaceFreeRefFunction
- Parameters:
args
- the pre-evaluated arguments for this function. args is nevernull
, nor are any of its elements.ec
- primarily used to identify the source cell containing the formula being evaluated. may also be used to dynamically create reference evals.- Returns:
- never
null
. Possibly an instance of ErrorEval in the case of a specified Excel error (Exceptions are never thrown to represent Excel errors).
-