Count number of words in string
'hi', answer is 1
'hi hi', answer is 2
'I enjoy cody', answer is 3
Vectorize the digits of an Integer
Compare two input matrices
Determine the length of a string of characters
factorial of a number x
Transpose of matrix
Find out Harmonic mean.
Change the first and last diagonal element of the identity matrix to zero
Find out rooms, peak to peak, average for a square wave.
Find out value of polynomial at different value.
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