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
Project Euler: Problem 8, Find largest product in a large string of numbers
Back to basics 17 - white space
Multiply a column by a row
03 - Matrix Variables 4
Back to basics 25 - Valid variable names
Back to basics 20 - singleton dimensions
Back to basics 1 - Saving
Back to basics 10 - Max Float
Back to basics 7 - Equal NaNs
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