Problem 45189. Double Factorial
Return double factorial
n(n-2)...(5)(3)(1), n>0, odd n!! = n(n-2)...(6)(4)(2), n>0, even 1 , n = -1, or n = 0
For example
6!! = (6)(4)(2) = 48
Solution Stats
Problem Comments
-
1 Comment
Atsushi Ueno
on 17 Nov 2019
Neither n = -1, nor n = 0 are tested.
Solution Comments
Show commentsProblem Recent Solvers62
Suggested Problems
-
2829 Solvers
-
605 Solvers
-
Calculate the area of a triangle between three points
2699 Solvers
-
Right Triangle Side Lengths (Inspired by Project Euler Problem 39)
1605 Solvers
-
Double all elements in the array
1348 Solvers
More from this Author92
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!