In a matrix, A = [1,2;3,4]
raise the power of each element like: 1^1+2^3+3^2+4^4 and add it all to produce the result 274
Find the logic
Switch matrix to a column vector
Matlab Basics - Rounding III
Calculating the total earnings of a factory
count upper and lower case characters
Basics: counting digits of a number irrespective of the sign
Find NaNs in the matrix
Day counter function
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