Example:
| Solve the system: | 12 x = 25 y |
| 2 y = a x - 1 |
where the parameter a is computed from a previous section of the program.
| For a = 1, the solution will be found as: | x = 25 |
| y = 12 |
A 3% error in the evaluation of a translates into a 400% error in the results:
| For a = 0.97, the solution is: | x = 100 |
| y = 48 |