Check if matrix A is nilpotent.
May I ask what is the definition of Nilpotent matrix. I suppose that is A^k =0 for some k? If I am right, then 0 must be an eigenvalue of A, then there is some issues for the test problems.
Remove all the consonants
Remove all the words that end with "ain"
It dseon't mettar waht oedrr the lrettes in a wrod are.
Convert a numerical matrix into a cell array of strings
Sum of series III
Sum of series I
Sum of series VII
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