Starting with polynomial:
P : 2*t
Extension levels are: 1 24
-------------------------------------------------
Trying to find an order 24 Kronrod extension for:
P1 : 2*t
Solvable: 1
-------------------------------------------------
Ending with final polynomial:
P : 2*t^25 - 300*t^23 + 18975*t^21 - 664125*t^19 + 113565375/8*t^17 - 386122275/2*t^15 + 13514279625/8*t^13 - 75293843625/8*t^11 + 4141161399375/128*t^9 - 4141161399375/64*t^7 + 17392877877375/256*t^5 - 7905853580625/256*t^3 + 7905853580625/2048*t
-------------------------------------------------
Computing nodes and weights
  current precision for roots: 53
  current precision for roots: 106
 current precision for weights: 53
Linear system for weights solvable: 0
  current precision for roots: 106
  current precision for roots: 212
 current precision for weights: 106
Linear system for weights solvable: 1
  current precision for roots: 212
  current precision for roots: 424
 current precision for weights: 212
Linear system for weights solvable: 1
Sufficient bits for target precision reached
Positive weights:   25 out of 25
Indefinite weights: 0 out of 25
Negative weights:   0 out of 25
Extension rule has valid weights: 1
-------------------------------------------------
The nodes are:
| (4.2186094443865613814 + 4.8219629780488768554e-425j)  +/-  (8.13e-122, 8.13e-122j)
| (5.4136363552800338097 - 1.1689484311751343879e-427j)  +/-  (2.46e-122, 2.46e-122j)
| (6.1642724340524517709 + 1.0522846963989694827e-430j)  +/-  (5.12e-123, 5.12e-123j)
| (-5.4136363552800338097 + 4.2186782141184460729e-428j)  +/-  (2.84e-122, 2.84e-122j)
| (-4.2186094443865613814 - 1.0683312117626664389e-436j)  +/-  (8.58e-122, 8.58e-122j)
| (4.7853203673522240573 + 2.3645507467650896026e-438j)  +/-  (5.63e-122, 5.63e-122j)
| (3.6902828769983559016 + 1.2372643346745266575e-442j)  +/-  (7.56e-122, 7.56e-122j)
| (-6.1642724340524517709 - 1.7533340679483165826e-446j)  +/-  (5.03e-123, 5.03e-123j)
| (-3.1882949244251047122 - 5.3513077876283873649e-452j)  +/-  (3.76e-122, 3.76e-122j)
| (2.2364201302672808702 + 1.6136393591798151249e-460j)  +/-  (5.89e-123, 5.89e-123j)
| (0.88198275621382135637 - 1.9439583112407482749e-462j)  +/-  (1.77e-125, 1.77e-125j)
| (0.44014729864530830458 + 1.3610848169704853556e-464j)  +/-  (2e-126, 2e-126j)
| (-0.88198275621382135637 + 5.0977247753295320539e-462j)  +/-  (2.14e-125, 2.14e-125j)
| (-2.7053202371730259933 - 4.9925063098030674095e-459j)  +/-  (1.98e-122, 1.98e-122j)
| (-1.7780011243371474582 - 1.99224833442144996e-463j)  +/-  (1.18e-123, 1.18e-123j)
| (1.3272807020730839518 - 2.2028603832799933771e-466j)  +/-  (2.17e-124, 2.17e-124j)
| (1.7780011243371474582 + 6.3029305623080906145e-466j)  +/-  (1.14e-123, 1.14e-123j)
| (-2.2364201302672808702 + 2.4828719312363923556e-463j)  +/-  (5.79e-123, 5.79e-123j)
| (-0.44014729864530830458 + 1.6792906909336733337e-470j)  +/-  (2e-126, 2e-126j)
| (1.1670021311309361412e-471 - 8.9286841574281065203e-472j)  +/-  (3.67e-470, 3.67e-470j)
| (3.1882949244251047122 + 3.7112311953427063994e-465j)  +/-  (4.5e-122, 4.5e-122j)
| (2.7053202371730259933 + 5.2842807381246473368e-468j)  +/-  (1.83e-122, 1.83e-122j)
| (-4.7853203673522240573 + 2.7231484384654692942e-475j)  +/-  (5.69e-122, 5.69e-122j)
| (-3.6902828769983559016 + 8.5452475966048241079e-487j)  +/-  (6.83e-122, 6.83e-122j)
| (-1.3272807020730839518 - 2.0132548103221728012e-492j)  +/-  (1.9e-124, 1.9e-124j)
-------------------------------------------------
The weights are:
| (5.7380238688993723938e-09 - 1.1672255220703472921e-432j)  +/-  (9.34e-42, 6.13e-103j)
| (7.1021030370039778832e-14 + 8.146010312440045955e-436j)  +/-  (1.31e-44, 8.62e-106j)
| (1.5300389979986994021e-17 - 7.3430976497563867959e-438j)  +/-  (3.5e-46, 2.29e-107j)
| (7.1021030370039778832e-14 - 1.0104107730523702089e-436j)  +/-  (3.88e-47, 2.54e-108j)
| (5.7380238688993723938e-09 - 3.2792477061929327452e-434j)  +/-  (6.57e-45, 4.31e-106j)
| (3.7911500004771696417e-11 - 3.9685546252850209073e-434j)  +/-  (4.32e-44, 2.83e-105j)
| (3.5301525602455047833e-07 + 4.1076943517903641259e-432j)  +/-  (1.45e-42, 9.52e-104j)
| (1.5300389979986994021e-17 + 1.3761112707126248534e-438j)  +/-  (6.02e-49, 3.95e-110j)
| (1.0672194905202563544e-05 - 1.6109703404095265503e-432j)  +/-  (8.49e-44, 5.57e-105j)
| (0.0017578504052637938903 - 7.7258845812723541887e-431j)  +/-  (1.76e-41, 1.16e-102j)
| (0.11488092430395157108 + 3.7103762596547874647e-430j)  +/-  (8.43e-39, 5.53e-100j)
| (0.20485102565034048053 - 4.3752751081627028708e-430j)  +/-  (5.8e-39, 3.8e-100j)
| (0.11488092430395157108 + 2.4271907002596696464e-430j)  +/-  (7.64e-40, 5.01e-101j)
| (0.0001777669069265263699 + 7.0334965687770858999e-432j)  +/-  (5.37e-43, 3.52e-104j)
| (0.010856755991462304614 + 6.3466411927265191532e-431j)  +/-  (3.7e-41, 2.43e-102j)
| (0.043379970167645001027 - 2.6311705751995145017e-430j)  +/-  (7.61e-40, 5e-101j)
| (0.010856755991462304614 + 1.5593875329468135627e-430j)  +/-  (3.64e-41, 2.39e-102j)
| (0.0017578504052637938903 - 2.3724219085283138697e-431j)  +/-  (7.75e-43, 5.08e-104j)
| (0.20485102565034048053 - 3.5485414608604287656e-430j)  +/-  (4.76e-40, 3.12e-101j)
| (0.24816935117648538028 + 4.3132623138876151397e-430j)  +/-  (5.5e-40, 3.61e-101j)
| (1.0672194905202563544e-05 - 1.1581377707101561256e-431j)  +/-  (2.97e-44, 1.95e-105j)
| (0.0001777669069265263699 + 3.2181497656400419971e-431j)  +/-  (1.46e-43, 9.57e-105j)
| (3.7911500004771696417e-11 + 2.497675440533328646e-435j)  +/-  (1.82e-48, 1.2e-109j)
| (3.5301525602455047833e-07 + 2.7439536353437490515e-433j)  +/-  (1.79e-46, 1.18e-107j)
| (0.043379970167645001027 - 1.3717455089789660181e-430j)  +/-  (1.37e-43, 8.84e-105j)
