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.
Make a Palindrome Number
Least common multiple of many numbers
Remove the two elements next to NaN value
Make a 1 hot vector
Back to basics 7 - Equal NaNs
Back to basics 17 - white space
Back to basics 21 - Matrix replicating
Back to basics 10 - Max Float
Back to basics 16 - byte order
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