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).
Arrange vector in ascending order
Fahrenheit to Celsius converter
Number of digits in an integer
Find out sum of all elements of given Matrix
06 - Matrix Equations 1
07 - Common functions and indexing 1
07 - Common functions and indexing 4
04 - Scalar Equations 1
02 - Vector Variables 3
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