The band matrix A shown below can be used to estimate the unsteady conduction of heat in a rod when the temperatures at points p1,….,p5 on the rod change with time.
The constant C in the matrix depends on the physical nature of the rod, the distance between the points on the rod, and
the length of time between successive temperature measurements. Suppose that for k = 0, 1, 2,.. .. a vector in R5 lists the temperatures at time
If the two ends of the rod arc maintained at 0°. then the temperature vectors satisfy the equation
a. Find the LU factorization of A when C =1.Arnatrix such as A with three nonzero diagonals is called a tridiagonal matrix. The L and U factors are bidiagonal matrices.
b. Suppose C= I and t0= (10, 12, 12, 12, 10). Use the LU factorization of A to find the temperature distributions t1, t2, t3, and t4.
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