Given a Matrix M, find out the number of elements of matrix that are divisible by 3.
M = [1 2 3;4 5 6;7 8 9];
out = 3
M = [32 12 15; 2 6 45];
out = 4
Swap the first and last columns
Make one big string out of two smaller strings
Count up then down
Recursion - Fun
Write a function man that takes a row vector v and returns a matrix H as follows..
Back to Basics - Find no. of elements in a matrix?
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