Starting with polynomial:
P : 5/2*t^3 - 3/2*t
Extension levels are: 3 10
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Trying to find an order 10 Kronrod extension for:
P1 : 5/2*t^3 - 3/2*t
Solvable: 1
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Ending with final polynomial:
P : 5/2*t^13 - 124943/17112*t^11 + 2882165/359352*t^9 - 1552265/379316*t^7 + 52195/54188*t^5 - 488345/5527176*t^3 + 3421/1842392*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:
| (0.98189373966174310941 - 4.1963661675037795376e-143j)  +/-  (9.82e-61, 9.82e-61j)
| (-0.98189373966174310941 + 1.7205401599229773569e-147j)  +/-  (1.09e-60, 1.09e-60j)
| (-0.90591989788431806766 - 5.8263746324664460496e-147j)  +/-  (1.77e-60, 1.77e-60j)
| (-0.17101852249474448773 - 5.0343799935601395517e-154j)  +/-  (2.69e-63, 2.69e-63j)
| (0.59706738604131558719 + 4.3666285809083704992e-172j)  +/-  (2.48e-61, 2.48e-61j)
| (0.77459666924148337704 - 1.5076708140444679081e-184j)  +/-  (9.83e-61, 9.83e-61j)
| (1.0520684875240334591e-189 - 3.4227294794115221869e-189j)  +/-  (4.66e-188, 4.66e-188j)
| (-0.77459666924148337704 + 5.5058250847091084359e-190j)  +/-  (1.05e-60, 1.05e-60j)
| (-0.59706738604131558719 + 2.8055159667307558909e-191j)  +/-  (2.52e-61, 2.52e-61j)
| (0.17101852249474448773 + 1.54303378170191574e-190j)  +/-  (2.69e-63, 2.69e-63j)
| (0.90591989788431806766 - 1.100288293202218326e-190j)  +/-  (2.02e-60, 2.02e-60j)
| (0.38736385932378655649 - 2.286235309102955651e-198j)  +/-  (3.22e-62, 3.22e-62j)
| (-0.38736385932378655649 + 3.0300272651336605308e-203j)  +/-  (3.06e-62, 3.06e-62j)
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The weights are:
| (0.046315472084977675075 + 5.5115682281522576241e-143j)  +/-  (7.69e-20, 2.95e-49j)
| (0.046315472084977675075 + 9.897531666650500611e-145j)  +/-  (3.33e-20, 1.28e-49j)
| (0.10482358739979075702 - 3.7527472518625943729e-144j)  +/-  (2.68e-20, 1.03e-49j)
| (0.20325381324263158191 - 8.0402762340010107665e-143j)  +/-  (6.43e-21, 2.47e-50j)
| (0.19648084401046957789 - 7.1091495049884975321e-143j)  +/-  (3.35e-21, 1.29e-50j)
| (0.15630315613221364749 + 7.2401201324975614896e-143j)  +/-  (2.04e-21, 7.84e-51j)
| (0.14736469563100595519 + 1.2411633019906510289e-142j)  +/-  (3.15e-21, 1.2e-50j)
| (0.15630315613221364749 + 8.5573361771289774218e-144j)  +/-  (7.8e-22, 2.98e-51j)
| (0.19648084401046957789 - 1.7336516670207942083e-143j)  +/-  (4.56e-22, 1.75e-51j)
| (0.20325381324263158191 - 1.1430620502685517538e-142j)  +/-  (3.21e-22, 1.26e-51j)
| (0.10482358739979075702 - 9.3061733296631992387e-143j)  +/-  (2.71e-23, 1.09e-52j)
| (0.21914077931441378302 + 8.280695557769933891e-143j)  +/-  (1.6e-22, 6.46e-52j)
| (0.21914077931441378302 + 3.5964200908396126795e-143j)  +/-  (9.47e-23, 3.04e-52j)
