jwm's deep embedded julia location

precision 276 bits
central minibrot period 788
order 24 series approximation skips 870 iterations

major glitches at iterations 1562 1593 2336

threshold
      references
1e-16   38
1e-15   29
1e-14   30
1e-13   32
1e-12   33
1e-11   43
1e-10  113
1e-09  105
1e-08   44
1e-07   49
1e-06   76 ** equivalent to non-squared 10^-3
1e-05  442
1e-04  244
1e-03 1031