Problem 2) Extract diagonal elements of a square matrix and put into a column array. As an example, you can read the matrix below from input using scanf: -9 10 22 -7 21 60 8. And your output display should look like: 1 60 -7 Your code must use for loops. Test your code with a 4x4 size square matrix and your choice of values.

Program: Using a multidimensional array, create a triangular-shaped array. You will ask the user how many lines they want to see and then create the array, fill it, and then print it. You will fill the array with one 1 in the first row, two 2’s in the second row, etc. This should work for any integer that the user enters. (Just because I am starting on 1 does not mean row 0 was skipped.)   You must: use a loop to create the array shape. You must: use nested for loops to fill the array and to print the values back to the screen. Your program should print as shown below.   Example Output:   How many lines would you like in your triangle? >>>9 1 2 2 3 3 3 4 4 4 4 5 5 5 5 5 6 6 6 6 6 6 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9   If your code looks like the code below, it is not what I’m asking for. The code below is making a square multidimensional array, not a triangular one. The code below is just leaving certain spots empty so that it looks like a triangle. I will ask you…

How can I get the codes for this problem by using GNU Octave?

MATLAB. write code for all parts