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 Solvers67
Suggested Problems
-
Sum all integers from 1 to 2^n
16757 Solvers
-
494 Solvers
-
Sum of first n positive integers
608 Solvers
-
Returning a "greater than" vector
264 Solvers
-
224 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!