_RL ZZ0(irun),Z(irun),Z2(irun),Z1(irun),Z0(irun)
Z0(indx) = ZZ0(I)
Z0(I) = -18. * Z0(I)
CALL PHI( Z0,X0,Y0,IFLAG,IBIT )
IF ( Z0(I) .LT. 0.013 ) ARG0(I) =
1 Z0(I) * ( 0.25 - 0.09375 * Z0(I) )
IF( Z0(I) .LT. 0.0065 ) ARG0(I) =
1 Z0(I) * ( 0.5 - 0.625 * Z0(I) )
IF ( Z0(I) .GT. Z0M ) THEN
Z0(I) = Z0M
X0NUM(I) = 1. + 5. * Z0(I)
X0DEN(I) = 1. + CM1 * (X0NUM(I) * Z0(I))
1 HZ(I) = Z1(I) / Z0(I)
ARG0(I) = (Z1(I) + 0.1) * (Z0(I) + 0.1)
ARG0(I) = ( Z1(I) - Z0(I) ) / ARG0(I)