An n by n matrix is called a positive Markov matrix if each element is positive and the sum of the elements in each column is 1. Write the following function to check whether a matrix is a Markov matrix: def isMarkovMatrix(m): Write a test program that prompts the user to enter a 3 by 3 matrix of numbers and tests whether it is a Markov matrix. Note that the matrix is entered by rows and the numbers in each row are separated by a space in one line.

i would first let him be aware that a cover letter is official and confidential and it requires a proper formatting so that the employer doesn't have hard time when going through it. he should write it in paragraphs of about two to four sentences and use proper grammar a , spelling and proper punctuation. i will also advice him not to be emotional and not also to use images.then base his attention to the details of the job described and not other things. that is he be specific to the responsibilities and to the employers requirements. on this he should make sure that the letter reflects how good he is for the requirements detailed by the employer

the letter should not be too long nor too short.