L-section reactive conjugate matching network
X12 = lmatch(ZG,ZL,type)
X12 = lmatch(ZG,ZL)
generator impedance = RG+jXG
load impedance = RL+jXL
'n', 'r', for normal or reversed L-section (default type='n')
[X1,X2] = reactances of matching network (dual solutions, unless RL=RG)
lmatch implements L-section reactive conjugate matching
add sample pgm