Starting with polynomial:
P : t
Extension levels are: 1 8
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Trying to find an order 8 Kronrod extension for:
P1 : t
Solvable: 1
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Ending with final polynomial:
P : t^9 - 36/17*t^7 + 126/85*t^5 - 84/221*t^3 + 63/2431*t
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Computing nodes and weights
  current precision for roots: 53
  current precision for roots: 106
 current precision for weights: 53
Linear system for weights solvable: 1
  current precision for roots: 106
  current precision for roots: 212
 current precision for weights: 106
Linear system for weights solvable: 1
Sufficient bits for target precision reached
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The nodes are:
| (0.96816023950762608984 + 7.1092636020535081473e-180j)  +/-  (8.64e-62, 8.64e-62j)
| (-0.61337143270059039731 + 5.5158688318700045419e-186j)  +/-  (4.11e-62, 4.11e-62j)
| (-0.96816023950762608984 - 3.3755968111704454879e-187j)  +/-  (8.52e-62, 8.52e-62j)
| (0.32425342340380892904 + 1.1506999082294115959e-192j)  +/-  (4.57e-63, 4.57e-63j)
| (0.8360311073266357943 + 3.0368797116625401085e-206j)  +/-  (9.13e-62, 9.13e-62j)
| (0.61337143270059039731 - 1.3456024139973534885e-218j)  +/-  (4.18e-62, 4.18e-62j)
| (-2.0051038473805092103e-226 - 6.3319068864647659273e-226j)  +/-  (5.98e-225, 5.98e-225j)
| (-0.8360311073266357943 + 3.6585725011311717191e-229j)  +/-  (1.23e-61, 1.23e-61j)
| (-0.32425342340380892904 - 3.3809740856039640168e-234j)  +/-  (4.57e-63, 4.57e-63j)
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The weights are:
| (0.081274388361574411972 - 8.9267899770954842168e-180j)  +/-  (1.19e-23, 4.04e-54j)
| (0.26061069640293546232 - 2.0640419518372130206e-180j)  +/-  (4.59e-24, 1.56e-54j)
| (0.081274388361574411972 - 2.9840270069145762974e-181j)  +/-  (2.51e-24, 8.52e-55j)
| (0.31234707704000284007 + 6.6475162604811679615e-180j)  +/-  (2.38e-24, 8.07e-55j)
| (0.18064816069485740406 + 1.4289771108132411077e-179j)  +/-  (1.07e-24, 3.62e-55j)
| (0.26061069640293546232 - 9.2008226319347626766e-180j)  +/-  (1.01e-24, 3.43e-55j)
| (0.33023935500125976316 - 4.8056621862494894819e-180j)  +/-  (2.14e-25, 7.35e-56j)
| (0.18064816069485740406 + 1.0465093347196222683e-180j)  +/-  (3.18e-26, 1.25e-56j)
| (0.31234707704000284007 + 3.3119227444752057185e-180j)  +/-  (9.1e-26, 2.87e-56j)
