Question

UOR 8ver the commands and examples in the Matlab Overview documents available on Blackboard Matlab folder, and then complete the assignment. You should turn in your entire command window text format, please) cither printed or by email. I need to be able to see both your com Use Matlab to perform as many calculations as possible, including determining whether an operation Make your calculations as efficient as possible. Look for ways to avoid entering Matlab results back Matlab. commands and your Assignment: Problem 1: Use commands to produce the following: a) a 3x2 matrix of all zeros b) a 2x4 matrix of all ones c) the 3x3 identity matrix d) a 4x4 diagonal matrix with diagonal entries 2, Problem 2: Use several commands similar to those in problem #1 1 1 1 0 0 to construct matrix M out of simpler submatrices: M 0 0 3 0 0 0 0 0 40 3 -6-7 2 Problem 3: A 3 3 04 a) Compute an LU-factorization of A. b) Use the LU-factorization to solve Ax =b. (Use the command for solving a matrix equation the first overview and solve Ly b for y and Ux-y for x.)
number 2 using mathlab

Answer 1

a) Hent 5-3 2 Gaustian-el, mi natron usi녀 method. 3 5-3 2 レ3,1 +5K o 6 12 o 12 22 9

L 3,2 3 52 し一○一一一12 22-9 レ412. . o 3 5 2 o 3 5 2 026 330 너520 ㄐ

lul 1-3-6-72 3 3 5 2 2 -315 2 2-

ㅇ 0-22 3 3 1.3 35 し て 3

3-2 l o l 100-2 0 LU and Subå LUX=b 3300 3.3臼 1.23 너-7 3 | | 3-3 5

Date n (2

2 3 cro

Dafe 21, +312 + 21 2-220