Starting with polynomial:
P : 2*t
Extension levels are: 1 10
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Trying to find an order 10 Kronrod extension for:
P1 : 2*t
Solvable: 1
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Ending with final polynomial:
P : 2*t^11 - 55*t^9 + 495*t^7 - 3465/2*t^5 + 17325/8*t^3 - 10395/16*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
Positive weights:   11 out of 11
Indefinite weights: 0 out of 11
Negative weights:   0 out of 11
Extension rule has valid weights: 1
-------------------------------------------------
The nodes are:
| (2.7832900997816517708 - 3.1698916458157204447e-132j)  +/-  (2.18e-61, 2.18e-61j)
| (3.6684708465595825185 + 3.0818391000986170991e-133j)  +/-  (6.46e-62, 6.46e-62j)
| (2.0259480158257553352 - 3.6982069201183405189e-132j)  +/-  (1.32e-61, 1.32e-61j)
| (-2.0259480158257553352 + 1.6794690268917721879e-139j)  +/-  (1.34e-61, 1.34e-61j)
| (-0.65680956688209976502 + 2.8029163332563412942e-145j)  +/-  (6.67e-63, 6.67e-63j)
| (-3.6684708465595825185 - 1.4916681462400413487e-153j)  +/-  (6.46e-62, 6.46e-62j)
| (-2.7832900997816517708 + 1.8548144395822933178e-168j)  +/-  (2.03e-61, 2.03e-61j)
| (-4.2414589625810760472e-179 + 3.0846974273316916707e-178j)  +/-  (3.43e-177, 3.43e-177j)
| (-1.3265570844949328559 + 3.2175901519241693161e-186j)  +/-  (3.55e-62, 3.55e-62j)
| (0.65680956688209976502 - 4.3836186980168060795e-192j)  +/-  (6.67e-63, 6.67e-63j)
| (1.3265570844949328559 - 2.4657855176344534197e-193j)  +/-  (2.85e-62, 2.85e-62j)
-------------------------------------------------
The weights are:
| (0.00019567193027122338993 + 7.3303521879011505668e-135j)  +/-  (2.72e-25, 6.64e-56j)
| (8.1218497902149142258e-07 - 1.2211548678189746019e-136j)  +/-  (1.3e-26, 3.18e-57j)
| (0.0067202852355372787064 + 4.553737569276286884e-134j)  +/-  (1.22e-24, 2.97e-55j)
| (0.0067202852355372787064 + 5.3738432398477245346e-135j)  +/-  (1.23e-25, 3e-56j)
| (0.24224029987396995101 + 4.9243902057262324424e-134j)  +/-  (1.47e-24, 3.57e-55j)
| (8.1218497902149142258e-07 + 4.1752385533085924978e-137j)  +/-  (3.12e-28, 7.62e-59j)
| (0.00019567193027122338993 - 7.6977808895362718822e-136j)  +/-  (4.82e-27, 1.18e-57j)
| (0.36940836940836940837 - 8.1222685135562042678e-134j)  +/-  (5.23e-25, 1.27e-55j)
| (0.066138746071057821217 - 2.0467496654016826937e-134j)  +/-  (1.48e-25, 3.62e-56j)
| (0.24224029987396995101 + 9.8675239498425952539e-134j)  +/-  (1.43e-25, 3.51e-56j)
| (0.066138746071057821217 - 1.0362038969641871257e-133j)  +/-  (6.68e-26, 1.56e-56j)
