Winter 2006 UCLA EE 103 Examples

To allow you to view the m-files in your browser window, I have renamed the m-files with a .txt suffix. To run them in Matlab, save them and rename them with a .m suffix. For example, save the file samplef_m.txt to a file named samplef.m.

1. Simple Matlab Example

2. More Detailed Matlab Example

3. chop.m rounds a number to a user-specified number of decimal digits.

4. Solve a quadratic equation in a way that avoids large cancellation error.

5. Ill conditioning --- a Matlab example.

6. Project Test Function --- a Matlab encoding of the test function used in the course project.

7. Symbolic Differentiation in Matlab.
   • grad.m
   • hessian.m

8. Steepest Descent Sample Implementation

9. Sample data function samplef.m

   • Classification of Stationary Points of samplef

   • Steepest Descent on samplef with backtracking, from several starting points.

   • Local minimization of samplef by pure Newton steps (no backtracking, very good starting point)

10. Linear Programming Sample Problem and Matlab Solution