emitt_dp_tev

	status.i4.v = emitt_dp_tev(sigmas.r4a.r, step.i4.v, plane.i4.v,
				   emittance.r4.r, dp.r4.r)

	This routine calculates the tranverse emittance and dp/p given beam 
	widths (wire sigmas) and the lowBeta squeeze step. You also need to
	link to UL_PHYSLIB to call this routine.

	sigmas		sigmas of wire profiles in mm
			(For a horizontal calculation, pass two sigmas in order:
			 E11, E17.  For a vertical calculation, pass two sigmas:
			 VE11, 0.0 (eta = 0.0).)
	step		lattice design-step
	plane		specify which plane to calculate for:
			(0 -> horizontal,
			 1 -> vertical)
	emittance	returned calculated emittance in pi-mm-mr
			(A value of zero is returned if the calculation fails.)
			(This is the non-normalized RMS emittance.
			 The 'ul_physlib:physlib' include file has
			 defined constants to help convert this to
			 normalized emittance.)
	dp		returned dp/p (RMS)
			(A value of zero is returned if the calculation fails.)

	This function returns ACNET status values as follows:

	OK			success
	CBS_INVARG		invalid plane or step passed
	CBS_NOTENB		routine is not enabled
	CBS_RANGE		calculation failed

	This function requires the following include files:

	ul_cbsaux_h:auxlib_misc_h, acnet_errors_h

	Related functions:

	None

	C/C++ usage:

	int	status;
	int	step = 0;
	int	plane = 0;
	float	sigmas[2];
	float	emittance;
	float	dp;

	status = emitt_dp_tev(sigmas,step,plane,&emittance,&dp);