Covering some basic topics I haven't seen elsewhere on Cody.
Given an input vector of numbers, output a square array with the vector as the main diagonal and all other elements = 0.
1 0 0 0
0 2 0 0
0 0 3 0
0 0 0 4
How to find the position of an element in a vector without using the find function
Reindex a vector
Find the logic
Switch matrix to a column vector
Back to basics 15 - classes
Back to basics 19 - character types
Back to basics 18 - justification
Back to basics 17 - white space
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