=== N = 6, tau = 1: kappa_a = A_ant/A (f1), kappa_b = Adag/A at one member, as functions of b/a
   b=0.1    kappa_a=     -46.0952380952381 kappa_b=          5747.5 Adag/Aant=       -124.6875 closure=7.7e-39
   b=0.12   kappa_a=     -31.2285115303983 kappa_b=   2843.20987654 Adag/Aant=  -91.0453216374 closure=5.1e-39
   b=0.14   kappa_a=     -22.3086019454511 kappa_b=   1573.07892545 Adag/Aant=  -70.5144557823 closure=2.5e-39
   b=0.16   kappa_a=     -16.5474537037037 kappa_b=   944.482421875 Adag/Aant=  -57.0772058824 closure=7.1e-39
   b=0.18   kappa_a=     -12.6166043719561 kappa_b=   603.511278768 Adag/Aant=   -47.834683642 closure=2.9e-39
   b=0.2    kappa_a=     -9.81818181818182 kappa_b=           405.0 Adag/Aant=          -41.25 closure=3.5e-39
   b=0.22   kappa_a=     -7.75727793909612 kappa_b=    282.74110375 Adag/Aant=  -36.4484946871 closure=2.7e-39
   b=0.24   kappa_a=      -6.1969246031746 kappa_b=   203.915895062 Adag/Aant=   -32.905982906 closure=1.6e-39
   b=0.26   kappa_a=     -4.98800858773629 kappa_b=   151.125223206 Adag/Aant=  -30.2977071006 closure=3.7e-39
   b=0.28   kappa_a=     -4.03293949158611 kappa_b=   114.618908788 Adag/Aant=  -28.4206864564 closure=3.6e-39
   b=0.3    kappa_a=     -3.26570048309179 kappa_b=   88.6728395062 Adag/Aant=  -27.1527777778 closure=6.9e-39
   b=0.32   kappa_a=     -2.64035560344828 kappa_b=   69.7906494141 Adag/Aant=  -26.4322916667 closure=1.4e-39
   b=0.34   kappa_a=     -2.12415343211191 kappa_b=    55.762472911 Adag/Aant=  -26.2516219723 closure=5.0e-39
   b=0.36   kappa_a=     -1.69324126386273 kappa_b=   45.1493674745 Adag/Aant=  -26.6644620811 closure=2.3e-39
   b=0.38   kappa_a=     -1.32991922530785 kappa_b=   36.9895296997 Adag/Aant=   -27.813365651 closure=1.0e-39
   b=0.4    kappa_a=     -1.02083333333333 kappa_b=          30.625 Adag/Aant=           -30.0 closure=3.8e-40
   b=0.42   kappa_a=    -0.755757950563145 kappa_b=   25.5962664733 Adag/Aant=  -33.8683390023 closure=2.0e-39
   b=0.44   kappa_a=    -0.526757891884568 kappa_b=    21.576395055 Adag/Aant=  -40.9607438017 closure=4.0e-39
   b=0.46   kappa_a=    -0.327600780733705 kappa_b=   18.3288456659 Adag/Aant=  -55.9487240076 closure=6.4e-39
   b=0.48   kappa_a=    -0.153337813620072 kappa_b=   15.6798562886 Adag/Aant=  -102.256944444 closure=3.3e-39
   b=0.5    kappa_a=  4.52684952278889e-40 kappa_b=            13.5 Adag/Aant=2.98220648423e+40 closure=9.4e-39
   b=0.52   kappa_a=     0.135625058701982 kappa_b=   11.6916424495 Adag/Aant=   86.2056213018 closure=1.1e-38
   b=0.54   kappa_a=     0.256159338107428 kappa_b=   10.1802693055 Adag/Aant=   39.7419410151 closure=2.4e-39
   b=0.56   kappa_a=     0.363759566326531 kappa_b=   8.90839754269 Adag/Aant=   24.4897959184 closure=1.5e-38
   b=0.58   kappa_a=      0.46021255611168 kappa_b=   7.83124034153 Adag/Aant=   17.0165725327 closure=6.4e-39
   b=0.6    kappa_a=     0.547008547008547 kappa_b=   6.91358024691 Adag/Aant=   12.6388888889 closure=1.2e-38
   b=0.62   kappa_a=     0.625398161901963 kappa_b=   6.12748654335 Adag/Aant=   9.79773673257 closure=1.4e-38
   b=0.64   kappa_a=     0.696437026515152 kappa_b=   5.45063018799 Adag/Aant=   7.82645089286 closure=8.0e-39
   b=0.66   kappa_a=     0.761021009824838 kappa_b=   4.86502684412 Adag/Aant=   6.39276285583 closure=2.5e-39
   b=0.68   kappa_a=     0.819914269483035 kappa_b=   4.35609008513 Adag/Aant=   5.31286043829 closure=6.4e-39
   b=0.7    kappa_a=     0.873771730914588 kappa_b=   3.91191170346 Adag/Aant=   4.47704081633 closure=2.0e-38
   b=0.72   kappa_a=     0.923157225853304 kappa_b=   3.52270995275 Adag/Aant=   3.81593714927 closure=1.7e-38
   b=0.74   kappa_a=     0.968558220876232 kappa_b=   3.18040312438 Adag/Aant=    3.2836468225 closure=3.9e-39
   b=0.76   kappa_a=      1.01039784816733 kappa_b=   2.87827748406 Adag/Aant=   2.84865757511 closure=1.5e-38
   b=0.78   kappa_a=      1.04904478783837 kappa_b=   2.61072683505 Adag/Aant=   2.48867051752 closure=2.4e-39
   b=0.8    kappa_a=      1.08482142857143 kappa_b=     2.373046875 Adag/Aant=          2.1875 closure=2.4e-38
   b=0.82   kappa_a=      1.11801064040739 kappa_b=   2.16127177776 Adag/Aant=    1.9331406157 closure=9.1e-39
   b=0.84   kappa_a=      1.14886142250327 kappa_b=   1.97204354153 Adag/Aant=   1.71651994131 closure=1.1e-38
   b=0.86   kappa_a=      1.17759363405659 kappa_b=   1.80250693152 Adag/Aant=   1.53066973139 closure=3.0e-39
   b=0.88   kappa_a=      1.20440197428834 kappa_b=   1.65022454067 Adag/Aant=   1.37016093954 closure=1.5e-38
   b=0.9    kappa_a=      1.22945934440187 kappa_b=   1.51310775796 Adag/Aant=   1.23070987654 closure=2.1e-38
   b=0.92   kappa_a=      1.25291969857835 kappa_b=   1.38936038679 Adag/Aant=   1.10889819066 closure=1.0e-38
   b=0.94   kappa_a=      1.27492047067809 kappa_b=   1.27743237724 Adag/Aant=   1.00197024569 closure=1.2e-39
   b=0.96   kappa_a=      1.29558464714715 kappa_b=   1.17598168644 Adag/Aant=  0.907684178744 closure=3.2e-38
   b=0.98   kappa_a=      1.31502254373877 kappa_b=   1.08384270333 Adag/Aant=  0.824200853811 closure=2.8e-39
   >>> sign change of kappa_a in (0.48, 0.5): root b*/a = 0.5; kappa_a at another member of that family = -2.8399e-32
=== N = 10, tau = 1: kappa_a = A_ant/A (f1), kappa_b = Adag/A at one member, as functions of b/a
   b=0.1    kappa_a=     -48.1060062257019 kappa_b=   32833.0062662 Adag/Aant=  -682.513657694 closure=8.2e-39
   b=0.12   kappa_a=      -32.873953764949 kappa_b=   14785.0496574 Adag/Aant=  -449.749663918 closure=3.9e-39
   b=0.14   kappa_a=     -23.6969062438308 kappa_b=   7531.17171789 Adag/Aant=  -317.812445236 closure=4.2e-39
   b=0.16   kappa_a=     -17.7456618426679 kappa_b=   4197.66847369 Adag/Aant=  -236.546177365 closure=3.2e-39
   b=0.18   kappa_a=     -13.6690501590875 kappa_b=   2505.92783034 Adag/Aant=  -183.328600098 closure=7.5e-39
   b=0.2    kappa_a=      -10.755658575148 kappa_b=   1579.08871398 Adag/Aant=   -146.81469321 closure=7.0e-39
   b=0.22   kappa_a=     -8.60201279258232 kappa_b=   1039.45530049 Adag/Aant=  -120.838613654 closure=2.4e-39
   b=0.24   kappa_a=     -6.96546582734953 kappa_b=   709.306927601 Adag/Aant=  -101.831944221 closure=4.5e-39
   b=0.26   kappa_a=     -5.69299408292118 kappa_b=   498.841559838 Adag/Aant=  -87.6237622194 closure=5.1e-39
   b=0.28   kappa_a=     -4.68422855036938 kappa_b=    359.93669686 Adag/Aant=   -76.840122763 closure=7.7e-39
   b=0.3    kappa_a=     -3.87112503648737 kappa_b=   265.501828625 Adag/Aant=  -68.5851854751 closure=4.8e-39
   b=0.32   kappa_a=     -3.20623454392214 kappa_b=   199.632728262 Adag/Aant=  -62.2639191013 closure=7.5e-39
   b=0.34   kappa_a=     -2.65565419420096 kappa_b=   152.648429599 Adag/Aant=   -57.480537162 closure=1.1e-39
   b=0.36   kappa_a=      -2.1946399370323 kappa_b=   118.467437165 Adag/Aant=  -53.9803523876 closure=2.8e-41
   b=0.38   kappa_a=     -1.80479148004285 kappa_b=    93.162105108 Adag/Aant=  -51.6193178759 closure=5.0e-39
   b=0.4    kappa_a=     -1.47219707838142 kappa_b=   74.1327905123 Adag/Aant=  -50.3552082808 closure=8.3e-39
   b=0.42   kappa_a=     -1.18618162478402 kappa_b=   59.6207348949 Adag/Aant=  -50.2627368771 closure=9.0e-39
   b=0.44   kappa_a=    -0.938443842635306 kappa_b=   48.4124429023 Adag/Aant=  -51.5880020763 closure=5.0e-39
   b=0.46   kappa_a=    -0.722450285296307 kappa_b=   39.6556396349 Adag/Aant=  -54.8904754307 closure=8.4e-39
   b=0.48   kappa_a=    -0.533002374918453 kappa_b=   32.7420266484 Adag/Aant=  -61.4294198096 closure=1.0e-38
   b=0.5    kappa_a=    -0.365922242006809 kappa_b=   27.2310188167 Adag/Aant=  -74.4175010171 closure=1.1e-38
   b=0.52   kappa_a=    -0.217821527733428 kappa_b=   22.7991874609 Adag/Aant=  -104.669119247 closure=4.6e-39
   b=0.54   kappa_a=   -0.0859290287654186 kappa_b=   19.2061582169 Adag/Aant=   -223.51187361 closure=1.6e-38
   b=0.56   kappa_a=    0.0320393248835939 kappa_b=   16.2712387927 Adag/Aant=   507.852111487 closure=1.6e-38
   b=0.58   kappa_a=     0.137979635152206 kappa_b=   13.8571637858 Adag/Aant=   100.429050784 closure=2.0e-38
   b=0.6    kappa_a=     0.233476436102072 kappa_b=   11.8586349813 Adag/Aant=   50.7915710009 closure=1.5e-38
   b=0.62   kappa_a=     0.319862109860407 kappa_b=   10.1941401909 Adag/Aant=   31.8704212743 closure=1.6e-39
   b=0.64   kappa_a=     0.398263498973821 kappa_b=   8.80004399781 Adag/Aant=   22.0960344608 closure=7.5e-39
   b=0.66   kappa_a=     0.469638772977371 kappa_b=   7.62627274827 Adag/Aant=   16.2385926952 closure=2.0e-39
   b=0.68   kappa_a=     0.534806809453343 kappa_b=   6.63313144804 Adag/Aant=   12.4028552569 closure=2.5e-38
   b=0.7    kappa_a=     0.594470776893485 kappa_b=   5.78893315762 Adag/Aant=   9.73796085969 closure=9.7e-39
   b=0.72   kappa_a=     0.649237190643739 kappa_b=   5.06821763361 Adag/Aant=   7.80641914334 closure=2.3e-39
   b=0.74   kappa_a=     0.699631408091574 kappa_b=   4.45040144803 Adag/Aant=   6.36106583633 closure=3.2e-38
   b=0.76   kappa_a=     0.746110303374991 kappa_b=   3.91874693987 Adag/Aant=   5.25223538952 closure=2.0e-38
   b=0.78   kappa_a=     0.789072693190101 kappa_b=   3.45956878553 Adag/Aant=   4.38434736798 closure=2.5e-38
   b=0.8    kappa_a=     0.828867958225044 kappa_b=   3.06161909795 Adag/Aant=   3.69373561563 closure=4.0e-38
   b=0.82   kappa_a=     0.865803208313596 kappa_b=   2.71560768706 Adag/Aant=   3.13651839239 closure=2.1e-39
   b=0.84   kappa_a=     0.900149265659579 kappa_b=   2.41382539219 Adag/Aant=   2.68158347096 closure=1.8e-38
   b=0.86   kappa_a=     0.932145683695385 kappa_b=   2.14984655668 Adag/Aant=   2.30634180288 closure=6.9e-39
   b=0.88   kappa_a=     0.962004975113881 kappa_b=    1.9182926684 Adag/Aant=   1.99405691034 closure=2.4e-38
   b=0.9    kappa_a=     0.989916188266815 kappa_b=   1.71464356678 Adag/Aant=   1.73210983627 closure=4.1e-38
   b=0.92   kappa_a=       1.0160479441652 kappa_b=   1.53508585982 Adag/Aant=   1.51083998411 closure=3.8e-38
   b=0.94   kappa_a=      1.04055102503667 kappa_b=   1.37639061368 Adag/Aant=    1.3227516773 closure=4.3e-38
   b=0.96   kappa_a=        1.063560588504 kappa_b=   1.23581419484 Adag/Aant=   1.16195937326 closure=2.0e-38
   b=0.98   kappa_a=       1.0851980679716 kappa_b=   1.11101751818 Adag/Aant=   1.02379238498 closure=3.3e-38
   >>> sign change of kappa_a in (0.54, 0.56): root b*/a = 0.554348601730070456191078297154; kappa_a at another member of that family = -1.0392e-32
=== N = 14, tau = 1: kappa_a = A_ant/A (f1), kappa_b = Adag/A at one member, as functions of b/a
   b=0.1    kappa_a=     -48.3323687716204 kappa_b=   62861.7162068 Adag/Aant=  -1300.61318749 closure=6.1e-39
   b=0.12   kappa_a=     -33.0718991731139 kappa_b=   27140.3810668 Adag/Aant=  -820.647793002 closure=4.6e-39
   b=0.14   kappa_a=     -23.8733764080191 kappa_b=   13325.5711267 Adag/Aant=  -558.177062974 closure=5.4e-39
   b=0.16   kappa_a=     -17.9052850283567 kappa_b=   7188.12444022 Adag/Aant=  -401.452667681 closure=1.4e-40
   b=0.18   kappa_a=     -13.8150858367044 kappa_b=   4166.21754298 Adag/Aant=  -301.570152529 closure=6.9e-39
   b=0.2    kappa_a=      -10.890499271761 kappa_b=   2555.44033745 Adag/Aant=  -234.648593575 closure=1.1e-38
   b=0.22   kappa_a=     -8.72747252168982 kappa_b=   1640.88768695 Adag/Aant=   -188.01407657 closure=6.6e-39
   b=0.24   kappa_a=     -7.08295627869047 kappa_b=   1094.21782211 Adag/Aant=  -154.486033664 closure=1.1e-38
   b=0.26   kappa_a=     -5.80363761345128 kappa_b=   753.179697784 Adag/Aant=  -129.777175618 closure=8.4e-39
   b=0.28   kappa_a=     -4.78893358418455 kappa_b=   532.609276019 Adag/Aant=  -111.216676251 closure=1.1e-40
   b=0.3    kappa_a=      -3.9706380744722 kappa_b=   385.482356851 Adag/Aant=  -97.0832268318 closure=5.9e-39
   b=0.32   kappa_a=     -3.30117705940083 kappa_b=   284.689457494 Adag/Aant=   -86.238772526 closure=1.6e-39
   b=0.34   kappa_a=     -2.74654944390861 kappa_b=   214.009661586 Adag/Aant=  -77.9194643884 closure=4.1e-39
   b=0.36   kappa_a=     -2.28193285460134 kappa_b=   163.417466992 Adag/Aant=  -71.6136176674 closure=1.2e-38
   b=0.38   kappa_a=     -1.88886370896475 kappa_b=   126.537364904 Adag/Aant=  -66.9912626856 closure=4.9e-40
   b=0.4    kappa_a=     -1.55337851679177 kappa_b=   99.2112595131 Adag/Aant=  -63.8680517598 closure=1.9e-38
   b=0.42   kappa_a=      -1.2647594196312 kappa_b=   78.6654086585 Adag/Aant=  -62.1979227334 closure=1.4e-38
   b=0.44   kappa_a=      -1.0146694873822 kappa_b=   63.0116831616 Adag/Aant=  -62.1006977594 closure=9.3e-39
   b=0.46   kappa_a=    -0.796545286237176 kappa_b=    50.941084981 Adag/Aant=   -63.952528326 closure=2.2e-38
   b=0.48   kappa_a=     -0.60516282241736 kappa_b=   41.5309278228 Adag/Aant=  -68.6276920596 closure=9.0e-39
   b=0.5    kappa_a=    -0.436322533598471 kappa_b=   34.1209130553 Adag/Aant=  -78.2011251492 closure=1.5e-38
   b=0.52   kappa_a=    -0.286617426949817 kappa_b=   28.2319229316 Adag/Aant=  -98.5003711464 closure=2.3e-38
   b=0.54   kappa_a=    -0.153260198337401 kappa_b=     23.51185297 Adag/Aant=  -153.411343748 closure=3.8e-39
   b=0.56   kappa_a=   -0.0339527903293153 kappa_b=   19.6988865463 Adag/Aant=  -580.184613849 closure=2.6e-38
   b=0.58   kappa_a=    0.0732131113781505 kappa_b=   16.5962184281 Adag/Aant=    226.68369252 closure=6.0e-39
   b=0.6    kappa_a=     0.169832752877993 kappa_b=   14.0544148894 Adag/Aant=   82.7544431286 closure=1.1e-39
   b=0.62   kappa_a=      0.25724795280941 kappa_b=   11.9589437297 Adag/Aant=   46.4880034965 closure=2.3e-38
   b=0.64   kappa_a=      0.33659389994494 kappa_b=   10.2212528558 Adag/Aant=   30.3667204231 closure=8.7e-39
   b=0.66   kappa_a=     0.408836173367383 kappa_b=   8.77231600779 Adag/Aant=   21.4568000075 closure=2.4e-38
   b=0.68   kappa_a=      0.47480025168019 kappa_b=   7.55791442565 Adag/Aant=   15.9180927114 closure=3.2e-38
   b=0.7    kappa_a=     0.535195203388454 kappa_b=   6.53515371599 Adag/Aant=   12.2107852885 closure=2.8e-38
   b=0.72   kappa_a=     0.590632833530293 kappa_b=   5.66986889169 Adag/Aant=   9.59965069635 closure=3.9e-38
   b=0.74   kappa_a=      0.64164325573538 kappa_b=     4.934674378 Adag/Aant=   7.69068221928 closure=7.7e-40
   b=0.76   kappa_a=     0.688687632400505 kappa_b=   4.30748674022 Adag/Aant=   6.25463060111 closure=3.6e-38
   b=0.78   kappa_a=     0.732168656498158 kappa_b=   3.77039693007 Adag/Aant=   5.14962897771 closure=2.5e-38
   b=0.8    kappa_a=     0.772439221115067 kappa_b=   3.30880310051 Adag/Aant=   4.28357728357 closure=4.1e-38
   b=0.82   kappa_a=     0.809809626091209 kappa_b=   2.91073919873 Adag/Aant=   3.59434996195 closure=3.0e-38
   b=0.84   kappa_a=      0.84455359715552 kappa_b=   2.56635174964 Adag/Aant=    3.0387079734 closure=2.3e-38
   b=0.86   kappa_a=     0.876913335981348 kappa_b=   2.26748959913 Adag/Aant=   2.58576247628 closure=2.9e-38
   b=0.88   kappa_a=     0.907103775411548 kappa_b=   2.00738033811 Adag/Aant=   2.21295555428 closure=1.5e-38
   b=0.9    kappa_a=     0.935316179636505 kappa_b=   1.78037366491 Adag/Aant=   1.90349926974 closure=5.5e-38
   b=0.92   kappa_a=     0.961721202052828 kappa_b=   1.58173675341 Adag/Aant=   1.64469364929 closure=5.2e-38
   b=0.94   kappa_a=     0.986471492170145 kappa_b=    1.4074902585 Adag/Aant=   1.42679263382 closure=5.7e-38
   b=0.96   kappa_a=      1.00970392597692 kappa_b=   1.25427625079 Adag/Aant=   1.24222182219 closure=6.9e-38
   b=0.98   kappa_a=      1.03154152064511 kappa_b=   1.11925137036 Adag/Aant=   1.08502793922 closure=2.2e-38
   >>> sign change of kappa_a in (0.56, 0.58): root b*/a = 0.566110868236319854567654206861; kappa_a at another member of that family = -1.6139e-32
=== N = 18, tau = 1: kappa_a = A_ant/A (f1), kappa_b = Adag/A at one member, as functions of b/a
   b=0.1    kappa_a=     -48.4055186025393 kappa_b=   85889.1622648 Adag/Aant=  -1774.36715367 closure=1.0e-38
   b=0.12   kappa_a=     -33.1370285776949 kappa_b=   36213.4633582 Adag/Aant=  -1092.83979018 closure=6.2e-39
   b=0.14   kappa_a=     -23.9323089625931 kappa_b=   17424.3487712 Adag/Aant=   -728.06801878 closure=1.9e-39
   b=0.16   kappa_a=     -17.9592668368913 kappa_b=   9234.87615382 Adag/Aant=   -514.21231377 closure=9.6e-39
   b=0.18   kappa_a=     -13.8650131930196 kappa_b=   5269.57297594 Adag/Aant=   -380.06260092 closure=1.1e-38
   b=0.2    kappa_a=      -10.937042328677 kappa_b=   3187.22800147 Adag/Aant=  -291.415897067 closure=7.6e-39
   b=0.22   kappa_a=      -8.7711477718326 kappa_b=    2020.7269492 Adag/Aant=  -230.383411814 closure=7.2e-39
   b=0.24   kappa_a=     -7.12417160566862 kappa_b=   1331.94216851 Adag/Aant=  -186.960988902 closure=1.3e-38
   b=0.26   kappa_a=     -5.84272163845052 kappa_b=   907.048788226 Adag/Aant=  -155.244224243 closure=6.9e-39
   b=0.28   kappa_a=      -4.8261555297245 kappa_b=   635.083737327 Adag/Aant=  -131.592057781 closure=5.0e-39
   b=0.3    kappa_a=     -4.00622164611806 kappa_b=   455.418318718 Adag/Aant=  -113.677763975 closure=1.4e-38
   b=0.32   kappa_a=      -3.3353104129793 kappa_b=   333.439493051 Adag/Aant=  -99.9725518061 closure=1.5e-38
   b=0.34   kappa_a=     -2.77939251009337 kappa_b=   248.624381999 Adag/Aant=  -89.4527782946 closure=1.4e-38
   b=0.36   kappa_a=     -2.31362283095689 kappa_b=   188.396472202 Adag/Aant=  -81.4292069048 closure=7.8e-39
   b=0.38   kappa_a=     -1.91951925116387 kappa_b=   144.822028917 Adag/Aant=  -75.4470312445 closure=1.5e-38
   b=0.4    kappa_a=     -1.58310298728886 kappa_b=    112.76583205 Adag/Aant=  -71.2308882969 closure=1.9e-39
   b=0.42   kappa_a=     -1.29364344085978 kappa_b=   88.8268950923 Adag/Aant=  -68.6641251266 closure=1.9e-38
   b=0.44   kappa_a=     -1.04279297338821 kappa_b=   70.7058957788 Adag/Aant=  -67.8043461964 closure=6.5e-39
   b=0.46   kappa_a=    -0.823979077433364 kappa_b=   56.8191207459 Adag/Aant=  -68.9569945428 closure=9.1e-39
   b=0.48   kappa_a=    -0.631970014341161 kappa_b=   46.0571696043 Adag/Aant=  -72.8787261408 closure=1.1e-38
   b=0.5    kappa_a=    -0.462559566913814 kappa_b=   37.6308419698 Adag/Aant=  -81.3535048488 closure=2.7e-38
   b=0.52   kappa_a=    -0.312334989122411 kappa_b=   30.9707503177 Adag/Aant=  -99.1587602937 closure=2.5e-38
   b=0.54   kappa_a=    -0.178503975276709 kappa_b=   25.6607411666 Adag/Aant=  -143.754452117 closure=2.0e-38
   b=0.56   kappa_a=    -0.058764097407411 kappa_b=   21.3930026847 Adag/Aant=  -364.048860248 closure=2.0e-38
   b=0.58   kappa_a=    0.0487967961056355 kappa_b=   17.9373303566 Adag/Aant=   367.592378766 closure=5.4e-39
   b=0.6    kappa_a=     0.145777335362333 kappa_b=   15.1197872439 Adag/Aant=   103.718367511 closure=1.2e-38
   b=0.62   kappa_a=     0.233522335468443 kappa_b=   12.8076925051 Adag/Aant=   54.8456852293 closure=3.8e-38
   b=0.64   kappa_a=     0.313169648616947 kappa_b=   10.8989325991 Adag/Aant=   34.8020079443 closure=2.3e-38
   b=0.66   kappa_a=     0.385687229700425 kappa_b=   9.31426382388 Adag/Aant=   24.1497853873 closure=3.9e-38
   b=0.68   kappa_a=     0.451902683626005 kappa_b=    7.9917101337 Adag/Aant=   17.6845821529 closure=3.0e-38
   b=0.7    kappa_a=     0.512526987828179 kappa_b=   6.88244532559 Adag/Aant=   13.4284544795 closure=1.2e-38
   b=0.72   kappa_a=     0.568173666134913 kappa_b=   5.94773804146 Adag/Aant=   10.4681691461 closure=5.8e-39
   b=0.74   kappa_a=     0.619374384021816 kappa_b=   5.15666538377 Adag/Aant=   8.32560324869 closure=1.5e-38
   b=0.76   kappa_a=     0.666591708633233 kappa_b=   4.48438762745 Adag/Aant=    6.7273378432 closure=3.7e-38
   b=0.78   kappa_a=     0.710229607643048 kappa_b=   3.91083618139 Adag/Aant=   5.50643924064 closure=5.4e-38
   b=0.8    kappa_a=     0.750642133504744 kappa_b=   3.41970846498 Adag/Aant=   4.55571078726 closure=2.4e-38
   b=0.82   kappa_a=     0.788140642831248 kappa_b=   2.99769253669 Adag/Aant=   3.80349949461 closure=3.5e-38
   b=0.84   kappa_a=     0.822999826604927 kappa_b=   2.63386500475 Adag/Aant=   3.20032267274 closure=4.6e-38
   b=0.86   kappa_a=     0.855462769891973 kappa_b=   2.31922056147 Adag/Aant=   2.71107129742 closure=2.2e-38
   b=0.88   kappa_a=     0.885745215519578 kappa_b=   2.04630217539 Adag/Aant=   2.31026048974 closure=1.2e-38
   b=0.9    kappa_a=      0.91403917167305 kappa_b=   1.80890875589 Adag/Aant=   1.97902760839 closure=8.2e-38
   b=0.92   kappa_a=     0.940515976286199 kappa_b=   1.60186281138 Adag/Aant=   1.70317448269 closure=3.3e-40
   b=0.94   kappa_a=     0.965328909714824 kappa_b=    1.4208248371 Adag/Aant=   1.47185567821 closure=5.1e-38
   b=0.96   kappa_a=     0.988615430207593 kappa_b=   1.26214430433 Adag/Aant=   1.27667874258 closure=8.3e-38
   b=0.98   kappa_a=      1.01049909314169 kappa_b=   1.12273947055 Adag/Aant=   1.11107419905 closure=9.8e-38
   >>> sign change of kappa_a in (0.56, 0.58): root b*/a = 0.57066496698061332823243861188; kappa_a at another member of that family = -1.4955e-32
