For given input matrix a, rotate it by 90 degrees and find the sum of the diagonals.
1 2 3 4
5 6 7 8
8 10 12 -2
-1 -3 -5 -7
Determine the length of a string of characters
Back to Basics - Find no. of elements in a matrix?
Test Problem; Create a 5x5 array containing all ones
find number of times of occurrence of the most frequent number in a row vector
Perimeter of a semicircle
Product of all elements in an array
Nth root of a number
Capitalized string operations
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