1) The dlmwrite functions allows us to easily write matrices to files.

dlmwrite documentation: http://www.mathworks.com/help/matlab/ref/dlmwrite.html

a) Assume we have a matrix, M. Using the dlmwrite function, write the MATLAB code to write the matrix to a file named myfile.txt, and have the content of the matrix be separated by commas.

b) What would you change if you wanted the matrix elements to be separated by a space instead of a comma?

2) Practice for loops by iterating through matrices, complete the following sections:

a) Write the MATLAB code to create a 5x5 matrix of zeroes. Store it in a variable named M.

b) Write the MATLAB code to change the diagonals of M from 0s to 1s (Hint: Draw the matrix out if you need to visually see this).