a) Logic not relating to computation is included in Group 4904 Pure mathematics. b) Engineering of quantum computing systems is included in Group 4009 Electronics,
sensors and digital hardware. c) Physics of quantum computing is included in Group 5108 Quantum physics. d) Numerical computation and mathematical software that is not in a particular domain
and not relating to computer algorithms is included in Division 49 Mathematical Sciences. e) Numerical computation relating to a particular domain is covered in that domain
(e.g. computational chemistry is included in Group 3407 Theoretical and computational
chemistry).