The extra points from the math exercises will be computed as follows:
20% of total points * #(accepted assignments) / #(number of assignments)
The criterion for acceptance is mentioned on each hand-out.

The extra points will be used for the grading of the written exam, computer 
projects, or for both (if you intend to do both).

We will grade each computer project that you have handed in. The final mark of 
the computer project is the average grade. 

If you take both the written exam and do the computer projects, the final 
grade will be the average of grade from the written exam and the computer 
project. If you do not wish to have the computer projects counted, you must 
let us know before 24/04/2009 (the last lecture).