ABSTRACT
Integration over figures in a cell K is easily subsumed by integration over K . Given a summant Sa on a figure A in K extend it to a summant S on K by letting S (I, t) = S a (I, t) if / C A, and S (I, t) = 0 otherwise. Let B be the complementary
As n —> oo this gives
(6)
(§1.5), JKS = f AS + JBS = f ASA + 0 = Ja S a and similarly JKS = f ASA. Thus, if it were convenient we could treat all integration in one dimension as integration over [—00, 00] with no loss of generality.
