Your test suite doesn't really match the problem statement. The tests require matrices with *exactly* all elements abot the main diagonal to be 0 *and* all elements on or below the main diagonal to be 1.
Additional test cases have been added.
Running this on octave returns the correct results yet the page still says I'm wrong.
function y = triangMatrix(x)
I copied this code from somewhere.
Return the 3n+1 sequence for n
Which doors are open?
Count from 0 to N^M in base N.
convert matrix to single column
Create a Matrix of Zeros
Back to basics 18 - justification
Back to basics 13 - Input variables
Back to basics 8 - Matrix Diagonals
Back to basics 1 - Saving
Better bullseye matrix
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