Question

Download the Array.mat file and save it in your current MATLAB directory (make sure it is in the correct folder). At the command prompt, type >> load Array. Look in your workspace window. You should see a 1-d array called vector (1x12), and a 2-d array called matrix (10x5). All of the following problems refer to the arrays vector and matrix downloaded from the Array.mat file. Don’t change the values in vector or matrix unless prompted. If you do inadvertently change them, just re-run the command >> load Array to recover the original arrays. a) Give a single MATLAB command that will pull out rows 5, 6, and 7 out of the 2-d array, matrix and put them in another matrix called matrixA. Show both your command and the results here: b) Give a single MATLAB command that will pull out columns 2, 3, and 4 out of the 2-d array, matrix and put them in another matrix called matrixB. Show both your command and the results here: c) Give a single MATLAB command that will replace the values in rows 1 & 2 and columns 2 & 3 of matrixB with the following values: Show both your command and the results here:

Answer 1

Code:

creating Array.mat file :

command window :

If you have any doubts feel free to comment in comment section.

DO VOTE(LIKE).