Then ignore the "rounding part" until the end! Do you know how to set this up as a matrix and do the "Gaussian elimination" part?
6x + 2y + 2z = -2
2x + 2/3y + 1/3z = 1
x + 2y - z = 0
This is part of a numerical methods tutorial sheet, I cant seem to solve them when im asked to use a certain digit arithmetic with rounding, would really appreciate if someone could go through it painfully slowly. I have answer in front of me but cant get it, I think im missing something that should be rather simple.
To Nappy: what are the rules for your 4-digit arithmetic? By rules, I guess I mean what are the answers to the following questions:
1. What is a 4-digit number? Is it
2. How do you add two 4-digit numbers?
3. How do you subtract two 4-digit numbers?
4. How do you multiply two 4-digit numbers?
5. How do you divide two 4-digit numbers?
Once you have that, you can start in. I'm assuming you'd start with something like the following augmented system (subject to the answer to #1 above):