I need to know how to write these commands on matlab. We will be answering these on paper. Please explain your answers because I will be using this to study for a test. Thank you!

10. Write a function which finds a local minimum in a vector, which is not the global minimum. A local minimum is an element in the vector which is larger than its two neighbours. 11. Write a function which takes as input a vector of length n2 and outputs a matrix of dimension n x n with the same elements, filled in line by line. For instance, for u = [ 1, 2, 3, 4, 5, 6, 7, 8, 9], the output should be A=1456 7 8 9 12. Write a function which take as parameter a square matrix and returns a matrix with all all the elements below the diagonal 0, and the rest of the elements equal to the corresponding elements of the original matrix. E.G, for the matrix 1 2 3 4 5 6 the result should be 0 5 6 [123