Do this example of how to use Maple to factor matrix A into LU form.
(Use Maple in this way to check your answers in the following problems.)

In the problems below, use LU Factorization (also called LU Decomposition) exactly as it was presented in class.

1. Factor the given matrix into LU form:

   4	7	12
   44	62	140
   80	–55	354

   (Use Maple's LUdecomp command to check your answer.)

2. Factor the given matrix into LU form:

   5	12	7	–3
   –15	–44	–12	13
   40	144	11	–37
   30	–40	150	17

   (Use Maple's LUdecomp command to check your answer.)

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