Concepts Assignment 4  
CSI 801   11/16/95

Do the following exercises in Golub & Ortega 

1. Exercise 6.1.3

2. Exercise 6.1.12

3. Exercise 6.2.3.  Then also solve this system using the function 
   lin_sol_gen in the IMSL C library.  Use the optional argument 
   IMSL_FACTOR to obtain and print sequence of pivots.

4. Exercise 6.2.9

5. Exercise 6.3.9

6. Exercise 6.3.16

7. Exercise 7.1.2

8. Exercise 8.1.2 (only for Gauss-Seidel)