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MAT 4725 Numerical Analysis Section 7.1 Part I Norms of Vectors and Matrices

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Presentation on theme: "MAT 4725 Numerical Analysis Section 7.1 Part I Norms of Vectors and Matrices"— Presentation transcript:

1 MAT 4725 Numerical Analysis Section 7.1 Part I Norms of Vectors and Matrices http://myhome.spu.edu/lauw

2 Chapter 7 Iterative Techniques in Matrix Algebra Section 2.2 Fixed-Point Iteration

3 Chapter 7 Iterative Techniques in Matrix Algebra Section 7.3 Iterative Techniques

4 Chapter 7 Iterative Techniques in Matrix Algebra Section 7.3 Iterative Techniques

5 Chapter 7 Iterative Techniques in Matrix Algebra Section 7.3 Iterative Techniques

6 Chapter 7 Iterative Techniques in Matrix Algebra Section 7.3 Iterative Techniques We need a way to measure the distance between two vectors

7 7.1 Norms of Vectors and Matrices Norms on real vector space (Part I) Norms on Matrices (Part II)

8 n Dimensional Real Vector Space Linear Algebra, Mult. Variables Calculus Applied Analysis

9 Definition 7.1

10 l 2 Norm (Euclidean Norm) Usual distance function on

11 l 2 Norm (Euclidean Norm) Usual distance function on Geometric Interpretations of

12 l  Norm Geometric Interpretations of

13 Example 1

14 Theorem 7.3 (Cauchy-Schwarz Inequality)

15 l 2 Norm is a vector norm Proof:

16 Definition 7.4

17 Definition 7.5

18 Theorem 7.6+7.7

19 Example 2

20 Classwork

21 Homework Download HW. Read 7.1 (skip all the proofs)


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