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).
Program an exclusive OR operation with logical operators
Back to basics 19 - character types
Return the first and last character of a string
Duplicate a character
04 - Scalar Equations 1
07 - Common functions and indexing 6
05 - Vector Equations 3
05 - Vector Equations 2
07 - Common functions and indexing 3
07 - Common functions and indexing 4
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