public class FactDouble extends Fixed1ArgFunction implements FreeRefFunction
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.
|Constructor and Description|
|Modifier and Type||Method and Description|
public static final FreeRefFunction instance
public static java.math.BigInteger factorial(int n)
public ValueEval evaluate(ValueEval args, OperationEvaluationContext ec)
args- the pre-evaluated arguments for this function. args is never
null, 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.
null. Possibly an instance of ErrorEval in the case of a specified Excel error (Exceptions are never thrown to represent Excel errors).
Copyright 2018 The Apache Software Foundation or its licensors, as applicable.