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).
Summing Digits within Text
How to find the position of an element in a vector without using the find function
Energy of a photon
select the primes of a vector
02 - Vector Variables 1
06 - Matrix Equations 1
07 - Common functions and indexing 1
02 - Vector Variables 2
05 - Vector Equations 2
05 - Vector Equations 3
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