
Essential Mathematical Background 611
In this appendix we shall consider the mathematical background required in computer science and specifi cally
in algorithm studies, for the students who are not familiar with them.
Why do we need mathematics at all in computer science?
1. To present information in an easily assimilated form
2. To provide a convenient method for solving a problem
3. To predict the behaviour of a real system.
In short we use mathematics to model the real world, see Fig. A.1.
Fig. A.1 Mathematics used for modelling
A n A
E i Mtmc Bacgrn
A.1 WHAT IS DISCRETE MATHEMATICS?
In Computer Science we mostly come ...