TW776/876: Numeriese Metodes/Numerical Methods

TW776/876 (2015)

Numeriese Metodes Numerical Methods

Inligtingstukke Information Sheets

Inligtingstuk; Information Sheet

Aankondigings Announcements

Second assignment (due 2015/03/05): Assignment 2 nopivotlu.m
Note: an improved version of Assignment 2 has been posted on 2015/02/25: the wording of Prob 2b was improved and the formula of 2d fixed.

Test 1 Date: In the Engineering Test Week, i.e., 27 March -- 2 April (precise date to be confirmed)

Student MATLAB: MATLAB can be purchased from MathWorks for USD45.00 (core) or USD89.00 (with toolboxes). You must register an account at using your email address. Then follow instructions at

Notas Notes

Chapter 1; Lecture Slides 1 (Background Material = Recommended Reading)

Chapter 2; Lecture Slides 2; NM262 lecture slides English Afrikaans (Linear Systems)

Chapter 3; Lecture Slides 3 (Least Squares)

Skedule Schedule

Week 1 (Feb 4&5): Linear systems; existence and uniqueness of solutions; vector and matrix norms; intro to conditioning of linear systems.

Week 2 (Feb 11&12): Conditioning (cont); the A = LU and PA = LU factorizations

Week 3 (Feb 18&19): Instability of GE and the growth factor; Complexity of matrix computations; Sherman-Morrison formula

Week 4 (Feb 25&26): Symmetric positive definite systems; Cholesky factorization; Review of the least squares problem; Normal equations

Opdragte Assignments

Assignment 1 (handed in on Feb 19) solutions to be posted


JAC Weideman