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.
We love vectorized solutions. Problem 1 : remove the row average.
Dimensions of a rectangle
Create the following sequence : 0 1 1 4 9 25 64 169 ...
Test Problem; Create a 5x5 array containing all ones
Find hen's weight.
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