In a given input string, count and return the number of upper and lower case characters as u and l respectively.
in 'This is a Test Case'
ans= [u,l]= [3,12]
Additional test cases have been added.
Most nonzero elements in row
Create a square matrix of multiples
Back to basics - mean of corner elements of a matrix
Matlab Basics - Absolute Value
Find NaNs in the matrix
Check for keywords
Day counter function
Raise each element to the power of its index in a matrix
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