QUAD

A quadrupole implemented as a matrix, up to 2nd order.

Parameter Name	Units	Type	Default	Description
L	$M$	double	0.0	length
K1	$1/M^{2}$	double	0.0	geometric strength
TILT	$RAD$	double	0.0	rotation about longitudinal axis
FFRINGE		double	0.0	fraction of length occupied by linear fringe region
DX	$M$	double	0.0	misalignment
DY	$M$	double	0.0	misalignment
DZ	$M$	double	0.0	misalignment
FSE	$M$	double	0.0	fractional strength error
ORDER		long	0	matrix order