2. Consider the linear system Ax = b, where [101] A = 14 1 cil, b=...
1) Consider the system of linear algebraic equations Ax = B where | 1 1/2 1/31 1/2 1/3 1/4 11/3 1/4 1/5 a) Find x, A" and det(A) using Gauss-Jordan elimination without pivoting. b) Using the result of part (a), find the condition number of A based on the Euclidean (Frobenius) norm. How many digits of precision do you suspect are lost in the solution x due to ill-conditioning?
just 1,2,4 Problem 1 Consider the linear system of equations Ax = b, where x € R4X1, and A= 120 b = and h= 0.1. [2+d -1 0 0 1 1 -1 2+d -1 0 h2 0 -1 2 + 1 Lo 0 -1 2+d] 1. Is the above matrix diagonally dominant? Why 2. Use hand calculations to solve the linear system Ax = b with d=1 with the following methods: (a) Gaussian elimination. (b) LU decomposition. Use MATLAB (L,...
Linear Algebra Question: 18. Consider the system of equations Ax = b where | A= 1 -1 0 3 1 -2 -1 4 2 0 4 -1 –4 4 2 0 0 3 -2 2 2 and b = BENA 1 For each j, let a; denote the jth column of A. e) Let T : Ra → Rb be the linear transformation defined by T(x) = Ax. What are a and b? Find bases for the kernel and image...
Consider the linear system X' = AX where A is defined by , where a and b are real numbers. Assume that the determinant of A is not zero. Classify the equilibrium solution (0,0) depending on the signs of a and b. Also, sketch a few trajectories for each case, including a few tangent vectors.
Consider the linear system of first order differential equations x' = Ax, where x= x(t), t > 0, and A has the eigenvalues and eigenvectors below. 4 2 11 = -2, V1 = 2 0 3 12 = -3, V2= 13 = -3, V3 = 1 7 2 i) Identify three solutions to the system, xi(t), xz(t), and x3(t). ii) Use a determinant to identify values of t, if any, where X1, X2, and x3 form a fundamental set of...
4. Consider solving the linear system Ax = b, where A is an rn x n matrix with m < n (under- determined case), by minimizing lle subject to Ar-b. (a) Show that if A Rmxn is full (row) rank, where m n, then AA is invertible. Then show that r.-A7(AAT)-ibis a solution to Ax = b. (b) Along with part (a) and the solution aAT(AA)-b, show that l thus, z is the optimal solution to the minimization problem. and...
Please do question 5 for me. Thanks Question 1 (10 marks) For a linear system Ax- b with 1 0 -1 A-1 2-1 2 -1 3 b=14 18 and compute by hand the first four iterations with the Jacobi method, using x()0 Hint: for the ease of calculation, keep to rational fractions rather than decimals Question 2 For the same linear system as in Question 1, compute by hand the first three iterations (10 marks) with the Gauss Seidel method,...
Linear Algebra: 14. Let A=| 1 2 | and b=| 1 |. (1) Use the Existence and Uniqueness Theorem to show Ax = b is an inconsistent linear system. (2) Find a least-squares solution to the inconsistent system Ax = b. 14. Let A=| 1 2 | and b=| 1 |. (1) Use the Existence and Uniqueness Theorem to show Ax = b is an inconsistent linear system. (2) Find a least-squares solution to the inconsistent system Ax = b.
Consider a linear system Ax b,and the SVD of the matrix A UXVH (a) please use matrices U, V, 2 to express the pseudo-inverse of the linear system. (b) please show that Av1 1u1, Av2 = 02u2,, Av, a,l,, where ris the rank of the matrix 2 0 (c) If A is a 3x2 matrix A = ( 0 0, calculate its reduced SVD (that is, find its U, 2, V); 0 Consider a linear system Ax b,and the SVD...
consider the linear system A^Tx =b where A^-1=[2,-1;3,4], b=[3;-1].then the solution vector x is 8. Consider the linear system ATX = b, where 4= 6'), =(-1) Then the solution vector x is (A) (15/11)