{HEAD ~ The two argument arctangent function} of {TAIL ~ Equation} 6 can be scaled to any 2λ interval, such as a “−λ to λ” interval or a “0 to 2λ” interval 
of
{ HEAD ~ The two argument arctangent function } of { TAIL ~ Equation } 6 can be scaled to any 2λ interval , such as a “ −λ to λ ” interval or a “ 0 to 2λ ” interval
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH