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
Back to basics 5 - Clipboard
Flip the main diagonal of a matrix
kmph to mps
Area of an Isoceles Triangle
Find the regional maximum value
Seperate array to small section according to its index position
Compute the intersect point of line and plan
Return fibonacci sequence do not use loop and condition version 3
Make an anonymous function that has variable output
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