By Using Matlab

Create the function lum.m, which decomposes the [A] matrix into [L] and [U] using the LU method,

for example:

- [L, U] = function lum (A)

- Write the code so that the forward elimination process of the LU method is output to lum_output.txt every step as you would expect by hand.

- Verify the output using a handheld problem.