'I have a task for a Matlab assignment and don't know how to solve it

In this exercise we will practice loops. Create a new vector (size 1x3 or 3x1) storing the diagonal using a for loop (and potentially conditions) to iterate over the elements of the initial matrix and keep just the ones in the diagonal. Hint: Notice that the elements in the diagonal has the same number for row and column.

The initial matrix is r1 =

80 75 59

13 59 58

83 31 21

The diagonal is [80 59 21].



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