Asymptotic Properties with Respect to the Independent Variable

W , (x ) - - , I 4 exp (- / f "' dx) ( x + a2-1. These results are valid whether or not a , and a, are finite, and also whether or not f and (gl are bounded as a , and a, are approached: it suflces that the error-control function F(x) is of bounded variation in (a , , a,).