Another update from ingydotnet^djgoku

Task/Multifactorial/Julia/multifactorial.julia

@@ -0,0 +1,18 @@
+function multifact{T<:Integer,U<:Integer}(n::T, k::U)
+    -1<n && 0<k || throw(DomainError())
+    1 < k || return factorial(n)
+    r = one(T)
+    for i in n:-k:2
+        r *= i
+    end
+    return r
+end
+
+khi = 5
+nhi = 10
+println("Showing multifactorial for n in [1,", nhi, "] and k in [1,", khi, "].")
+for k = 1:khi
+    a = Int64[multifact(i, k) for i in 1:nhi]
+    lab = "n"*"!"^k
+    println(@sprintf("  %-6s =>  ", lab), a)
+end