A perfect number occurs whent the sum of all divisors of a positive integer, except the number itself, equals the number.
28 = 1 + 2 + 4 + 7 + 14;
so return true
10 ~= 1 + 2 + 5
so return false
Replace NaNs with the number that appears to its left in the row.
Are you in or are you out?
Fill a zeros matrix
Magic is simple (for beginners)
subtract central cross
Return fibonacci sequence do not use loop and condition version 3
Compute the intersect point of line and plan
If the number is Narcissistic number
Project Euler: Problem 14 Longest Collatz sequence(harder version)
Repeat copies of array elements
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office