One is his association with NAG, the Numerical Algorithms Group. Fox's laboratory at Oxford was one of the founding organisations of NAG in 1970 and he strongly encouraged the development of the group, offering considerable resources from his own Computing Laboratory.
Ang isa ay kanyang sasamahan may NAG, ang mga de-numerong algorithm Group. Fox's laboratoryo sa Oxford ay isa sa mga founding organisasyon ng mga NAG sa 1970 at siya Matindi hinihikayat ang pagbuo ng grupo, nag-aalay ng marami resources mula sa kanyang sariling Computing Laboratory.