A simple electronic calculator is allowed in the exam. 
The following should be taken into consideration about the calculator:
    * The calculator must be of a size suitable for use on the desk
    * The calculator must be silent , with a small visual display only
    * Calculator cases , instruction leaflets or formulae printed on the lid or cover of the calculator must not be in the possession of the     candidates
    * External storage media i.e. card , tape , disk , smartcard or plug-in modules must not be in the possession of candidates during the examination
    * Programmable calculators may be used but no prepared programs may be taken into the examination room.
 
Calculators with any of the following facilities are prohibited:
 
    * Graphic display
    * Data banks
    * Dictionaries
    * Language translators
    * QWERTY keyboards
    * Manipulation of text or formulae
    * Symbolic differentiation or integration
    * Capability of remote communication with other machines
 
Thank you.