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).
Word Counting and Indexing
Least common multiple of many numbers
01 - Scalar variables
Rounding off numbers to n decimals
04 - Scalar Equations 1
02 - Vector Variables 4
03 - Matrix Variables 5
03 - Matrix Variables 1
07 - Common functions and indexing 3
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