Cheg 258 - Lecture Notes - Feb. 4, 2000
Announcements
Class notes
Scanned Notes
The main points of the lecture were
- Errors in Systems of Equations
- Linear Regression
Goals:
After this class you should be able to:
- Calculate the error in the solution of a system of linear equations.
- Fit a line to a set of data using linear regression.
Reading
- The class notes and Chapter 6 of Kahaner and Hanna.
Questions of the Day
- If the right hand side b of the problem A x = b is a result of measurements
which have a precision of 1%, what is the upper limit on the condition number
of A for the solution to have any significance?
- In the class example (diffusion through a membrane between two reservoirs),
can we use linear regression if we don't know the equilibrium concentration?
Matlab Example Codes
example 8
-
Homework Exercises (Due Feb. 11, 2000)
problem 8
solution
David.T.Leighton.1@nd.edu