Check whether the input matrix is a figurate number triangle: http://mathworld.wolfram.com/FigurateNumberTriangle.html
you should probably add a test case where the correct answer is false.
I added a few more tests as suggested.
It dseon't mettar waht oedrr the lrettes in a wrod are.
03 - Matrix Variables 1
Flip the bit
Tune your guitar
Cull vector elements that contain a specified digit
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