Write matlab code to solve tridiagonal linear systems, i.e., systems of the form Ar b where A is tridiagonal. This code must be in the form of a function. The inputs to the function should be in the form of vectors for the diagonal, lower-diagonal and upper-diagonal elements of the matrix and the vector right-hand side of the equation. Write a script that calls the function, and which also checks its output by computing Ar b, where A is in its matrix form. Apply your code to solve Ar = b, and check the solution (by computing the Euclidean norm of A b where is your computed solution), where 2 10 0 2 6 3 0 2 0 1 6 0 0 2 8 0 0 0 -2 0 0 0 3 A = and b = -1 9 -3 1 8 6.