Clarification: For b, with "a string" it seems you accept both string arrays and char arrays. For c, with "matrix" it seems you require a numeric array — this is different from MATLAB's definition of a "matrix".
Thank you David Verrelli. I have modified the problem description to try to reflect that.
Remove all the consonants
02 - Vector Variables 4
Create a Matrix of Zeros
Display positive elements of matrix.
Calculate the hypotenuse of a right triangle without using ^ and sqrt ()
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