Starting with polynomial:
P : 3/2*t^2 - 1/2
Extension levels are: 2 7 10
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Trying to find an order 7 Kronrod extension for:
P1 : 3/2*t^2 - 1/2
Solvable: 1
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Trying to find an order 10 Kronrod extension for:
P2 : 3/2*t^9 - 151/50*t^7 + 1281/650*t^5 - 651/1430*t^3 + 56/2145*t
Solvable: 1
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Ending with final polynomial:
P : 3/2*t^19 - 59223261144133103007/8719239124929410350*t^17 + 336441156077334773677/26157717374788231050*t^15 - 161370425973044134409149/12219141709676075664490*t^13 + 3618828931625441841999541/453988111213349580457590*t^11 - 2484797910836626927503487/866704575952758289964490*t^9 + 1430702432085456985697063/2407512710979884138790250*t^7 - 22343098874047412337633/343930387282840591255750*t^5 + 319974457119560256257/103179116184852177376725*t^3 - 18130300172095676688/447109503467692768632475*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
  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
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The nodes are:
| (0.99388390574983522982 - 3.741371937991128583e-327j)  +/-  (2.56e-122, 2.56e-122j)
| (-0.29036229308829455553 - 8.3902648285836725998e-332j)  +/-  (1.01e-125, 1.01e-125j)
| (-0.90431429965200025027 - 7.2010106750884757342e-336j)  +/-  (4.02e-122, 4.02e-122j)
| (-0.14202534200722217411 - 4.3574671543954030494e-336j)  +/-  (6.81e-127, 6.81e-127j)
| (0.96392874096524810675 - 3.726914189862374589e-337j)  +/-  (4.61e-122, 4.61e-122j)
| (0.90431429965200025027 - 2.9632483743764026268e-341j)  +/-  (3.84e-122, 3.84e-122j)
| (-0.99388390574983522982 - 1.2246052454642912883e-343j)  +/-  (2.4e-122, 2.4e-122j)
| (-0.96392874096524810675 + 2.8811025707761132112e-344j)  +/-  (5.03e-122, 5.03e-122j)
| (-0.43774047849500255323 - 1.0125244387626499412e-347j)  +/-  (1.08e-124, 1.08e-124j)
| (0.43774047849500255323 - 1.3888319395056260664e-362j)  +/-  (1.01e-124, 1.01e-124j)
| (0.81641357233552832956 - 1.0626894539464127972e-371j)  +/-  (1.71e-122, 1.71e-122j)
| (0.29036229308829455553 + 1.6156125186418166365e-386j)  +/-  (9.77e-126, 9.77e-126j)
| (-0.57735026918962576451 - 9.5822855612390435947e-396j)  +/-  (8.9e-124, 8.9e-124j)
| (-0.70530599149863507721 - 1.6276471179844356339e-409j)  +/-  (4.77e-123, 4.77e-123j)
| (0.14202534200722217411 - 8.5926759859012508939e-425j)  +/-  (6.58e-127, 6.58e-127j)
| (0.70530599149863507721 + 3.7718892982373065087e-432j)  +/-  (4.84e-123, 4.84e-123j)
| (0.57735026918962576451 - 5.5103461214101000579e-441j)  +/-  (8.82e-124, 8.82e-124j)
| (2.9149247305103920706e-448 + 4.9380375912010945484e-449j)  +/-  (5.62e-447, 5.62e-447j)
| (-0.81641357233552832956 + 5.8738746868950382253e-453j)  +/-  (1.74e-122, 1.74e-122j)
-------------------------------------------------
The weights are:
| (0.016339295233262207984 + 4.1033602815636469176e-327j)  +/-  (2.04e-46, 1.07e-105j)
| (0.14941157494922681935 - 1.7290736967682318323e-327j)  +/-  (9.03e-47, 4.75e-106j)
| (0.074390461487053243381 + 1.709673440138381402e-328j)  +/-  (1.77e-47, 9.28e-107j)
| (0.14564412107929994467 + 2.5305600936372715989e-327j)  +/-  (5.66e-47, 2.98e-106j)
| (0.044536207488732257619 - 6.2122548061147548461e-327j)  +/-  (2.23e-47, 1.17e-106j)
| (0.074390461487053243381 + 3.6232794284806872092e-327j)  +/-  (6.43e-48, 3.38e-107j)
| (0.016339295233262207984 + 3.0753293954669559336e-329j)  +/-  (1.96e-48, 1.03e-107j)
| (0.044536207488732257619 - 9.5047934324010872542e-329j)  +/-  (4.05e-48, 2.13e-107j)
| (0.14422048349015327282 + 1.1312103820585827506e-327j)  +/-  (2.38e-48, 1.25e-107j)
| (0.14422048349015327282 + 2.9121339805999844708e-327j)  +/-  (7.13e-49, 3.75e-108j)
| (0.10053256542821272284 - 2.8430254354753283023e-327j)  +/-  (7.12e-49, 3.74e-108j)
| (0.14941157494922681935 - 3.1563210773661744977e-327j)  +/-  (6.88e-49, 3.61e-108j)
| (0.1344528933245421328 - 7.2262084595295059672e-328j)  +/-  (2.51e-49, 1.32e-108j)
| (0.12057579702142590454 + 4.504948960996786132e-328j)  +/-  (9.19e-50, 4.82e-109j)
| (0.14564412107929994467 + 3.3742624004226386242e-327j)  +/-  (1.01e-49, 5.33e-109j)
| (0.12057579702142590454 + 2.6526469903433828724e-327j)  +/-  (1.4e-50, 7.34e-110j)
| (0.1344528933245421328 - 2.7259377122166297089e-327j)  +/-  (1.52e-50, 7.87e-110j)
| (0.13979320099618298798 - 3.2166806841371194472e-327j)  +/-  (1.84e-50, 1.09e-109j)
| (0.10053256542821272284 - 2.7870689881918065279e-328j)  +/-  (3.64e-51, 1.58e-110j)
