Fellow of the Institute of Mathematics and it’s Applications, FIMA, CMath, CSci, CmathTeach. Fellow of the British Computer Society, FBCS, CITP. Fellow of the Institution of Analysts and Programmers, FIAP. Member of the Institute of Physics, MInst.P, CPhys. Member of the Institution of Engineers and Technology, MIET, MIEE. Associate Fellow of the Institution of Chemical Engineers, AFIChemE Member of the Royal Economic Society. Member of the British Society for the History of Mathematics. External Examiner: University of Ulster, University of Plymouth and Sheffield University