Make fMat be a 5x3 matrix of random integers with values from -3 to 3
(Hint: use randi)
Test for randomness could be tightened (cf. Solution 1490988).
Maximum running product for a string of numbers
Back to basics 14 - Keywords
Detect a number and replace with two NaN's
Sum the numbers on the main diagonal
02 - Vector Variables 1
03 - Matrix Variables 3
07 - Common functions and indexing 2
02 - Vector Variables 5
07 - Common functions and indexing 3
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