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Double Factorial
The double factorials are defined by:
$$n!!=n(n-2)(n-4)\cdots$$
Usage
- Used to compactly express Wallis-type products and factorial relations.
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Double Factorial
The double factorials are defined by:
$$n!!=n(n-2)(n-4)\cdots$$
Usage
- Used to compactly express Wallis-type products and factorial relations.
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