History of Real periods of genus 2 curves over $\mathbb{Q}$

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2026-09-11 00:47 zeta3 keep T213 definition concise current reviewed
2026-09-11 00:45 zeta3 shorten T213 definition below audit threshold
2026-09-11 00:42 zeta3 shorten T213 definition after audit
2026-09-11 00:39 zeta3 keep T213 generator label order numeric
2026-09-11 00:39 zeta3 repair T213 critique findings
2026-09-11 00:20 zeta3 shortened definition after audit
2026-09-11 00:19 zeta3 tightened definition and tags after audit
2026-09-11 00:16 zeta3 with codex-cli genus 2 real periods from LMFDB for conductor <= 1000
2026-09-11 00:14 zeta3 proposed genus 2 real periods from LMFDB

What changed between 2026-09-11 00:14 and 2026-09-11 00:16

from line 92 (873 lines, 871 more than before) @@ -92,2 +92,873 @@
   group parameters:   - - label+Numbers:+- params:+    label: 169.a.169.1+  number: '32.66703109050709611000590237'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/169/a/169/1}[LMFDB 169.a.169.1]+    has isogeny class 169.a and model $y^2 + (x^3 + x + 1)y = x^5 + x^4$.+- params:+    label: 196.a.21952.1+  number: '11.77714784061282915609229119'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/196/a/21952/1}[LMFDB 196.a.21952.1]+    has isogeny class 196.a and model $y^2 + (x^2 + x)y = x^6 + 3 x^5 + 6 x^4 + 7+    x^3 + 6 x^2 + 3 x + 1$.+- params:+    label: 249.a.249.1+  number: '25.78370337424983680582666323'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/249/a/249/1}[LMFDB 249.a.249.1]+    has isogeny class 249.a and model $y^2 + (x^3 + 1)y = x^2 + x$.+- params:+    label: 249.a.6723.1+  number: '25.78370337424983680582666323'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/249/a/6723/1}[LMFDB 249.a.6723.1]+    has isogeny class 249.a and model $y^2 + (x^3 + 1)y = -x^5 + x^3 + x^2 + 3 x ++    2$.+- params:+    label: 256.a.512.1+  number: '26.84182943692641124244186499'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/256/a/512/1}[LMFDB 256.a.512.1]+    has isogeny class 256.a and model $y^2 + y = 2 x^5 - 3 x^4 + x^3 + x^2 - x$.+- params:+    label: 277.a.277.1+  number: '32.20574862397758528503592224'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/277/a/277/1}[LMFDB 277.a.277.1]+    has isogeny class 277.a and model $y^2 + (x^3 + x^2 + x + 1)y = -x^2 - x$.+- params:+    label: 277.a.277.2+  number: '3.578416513775287253892880249'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/277/a/277/2}[LMFDB 277.a.277.2]+    has isogeny class 277.a and model $y^2 + y = x^5 - 9 x^4 + 14 x^3 - 19 x^2 + 11+    x - 6$.+- params:+    label: 294.a.294.1+  number: '21.45153311338415631878371145'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/294/a/294/1}[LMFDB 294.a.294.1]+    has isogeny class 294.a and model $y^2 + (x^3 + 1)y = x^4 + x^2$.+- params:+    label: 294.a.8232.1+  number: '7.150511037794718772927903818'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/294/a/8232/1}[LMFDB 294.a.8232.1]+    has isogeny class 294.a and model $y^2 + (x^3 + 1)y = -2 x^4 + 4 x^2 - 9 x - 14$.+- params:+    label: 295.a.295.1+  number: '29.25660030111076897552885992'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/295/a/295/1}[LMFDB 295.a.295.1]+    has isogeny class 295.a and model $y^2 + (x^3 + 1)y = -x^2$.+- params:+    label: 295.a.295.2+  number: '0.5970734755328728362352828556'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/295/a/295/2}[LMFDB 295.a.295.2]+    has isogeny class 295.a and model $y^2 + (x^2 + x + 1)y = x^5 - 40 x^3 + 22 x^2+    + 389 x - 608$.+- params:+    label: 324.a.648.1+  number: '25.52176850296810024668026002'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/324/a/648/1}[LMFDB 324.a.648.1]+    has isogeny class 324.a and model $y^2 + (x^3 + x + 1)y = x^5 + 2 x^4 + 2 x^3+    + x^2$.+- params:+    label: 336.a.172032.1+  number: '0.3560662442754820315373580806'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/336/a/172032/1}[LMFDB 336.a.172032.1]+    has isogeny class 336.a and model $y^2 + (x^3 + x)y = -x^6 + 15 x^4 - 75 x^2 -+    56$.+- params:+    label: 349.a.349.1+  number: '27.98848412463092306248410124'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/349/a/349/1}[LMFDB 349.a.349.1]+    has isogeny class 349.a and model $y^2 + (x^3 + x^2 + x + 1)y = -x^3 - x^2$.+- params:+    label: 353.a.353.1+  number: '22.49549461731395943659449758'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/353/a/353/1}[LMFDB 353.a.353.1]+    has isogeny class 353.a and model $y^2 + (x^3 + x + 1)y = x^2$.+- params:+    label: 360.a.6480.1+  number: '24.16337901380689181478583546'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/360/a/6480/1}[LMFDB 360.a.6480.1]+    has isogeny class 360.a and model $y^2 + (x^3 + x)y = -3 x^4 + 7 x^2 - 5$.+- params:+    label: 363.a.11979.1+  number: '18.97059599534884032426437150'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/363/a/11979/1}[LMFDB 363.a.11979.1]+    has isogeny class 363.a and model $y^2 + (x^2 + 1)y = x^5 + 2 x^3 + 4 x^2 + 2+    x$.+- params:+    label: 363.a.43923.1+  number: '3.794119199069768064852874300'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/363/a/43923/1}[LMFDB 363.a.43923.1]+    has isogeny class 363.a and model $y^2 + x^2 y = 11 x^5 - 13 x^4 - 7 x^3 + 10+    x^2 + x - 2$.+- params:+    label: 388.a.776.1+  number: '29.13550129458951056269076716'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/388/a/776/1}[LMFDB 388.a.776.1]+    has isogeny class 388.a and model $y^2 + (x^3 + x + 1)y = -x^4 + 2 x^2 + x$.+- params:+    label: 389.a.389.1+  number: '19.79862013008733330350209978'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/389/a/389/1}[LMFDB 389.a.389.1]+    has isogeny class 389.a and model $y^2 + (x^3 + x)y = x^5 - 2 x^4 - 8 x^3 + 16+    x + 7$.+- params:+    label: 389.a.389.2+  number: '19.79862013008733330350209978'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/389/a/389/2}[LMFDB 389.a.389.2]+    has isogeny class 389.a and model $y^2 + (x + 1)y = x^5 + 2 x^4 + 2 x^3 + x^2$.+- params:+    label: 394.a.3152.1+  number: '20.07827436393815644080807780'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/394/a/3152/1}[LMFDB 394.a.3152.1]+    has isogeny class 394.a and model $y^2 + (x + 1)y = -x^5$.+- params:+    label: 394.a.394.1+  number: '20.07827436393815644080807780'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/394/a/394/1}[LMFDB 394.a.394.1]+    has isogeny class 394.a and model $y^2 + (x^3 + x)y = 2 x^5 + x^4 - 12 x^3 + 17+    x - 9$.+- params:+    label: 400.a.409600.1+  number: '7.977094942516564227224046949'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/400/a/409600/1}[LMFDB 400.a.409600.1]+    has isogeny class 400.a and model $y^2 = x^6 + 4 x^4 + 4 x^2 + 1$.+- params:+    label: 427.a.2989.1+  number: '18.61317612582742400918645147'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/427/a/2989/1}[LMFDB 427.a.2989.1]+    has isogeny class 427.a and model $y^2 + (x^3 + 1)y = x^5 - x^4 - 5 x^3 + 4 x^2+    + 4 x - 4$.+- params:+    label: 448.a.448.1+  number: '7.792788965311644825093853187'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/448/a/448/1}[LMFDB 448.a.448.1]+    has isogeny class 448.a and model $y^2 + (x^3 + x)y = x^4 - 7$.+- params:+    label: 448.a.448.2+  number: '31.17115586124657930037541275'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/448/a/448/2}[LMFDB 448.a.448.2]+    has isogeny class 448.a and model $y^2 + (x^3 + x)y = -2 x^4 + 7$.+- params:+    label: 450.a.2700.1+  number: '18.77899571854043724939357821'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/450/a/2700/1}[LMFDB 450.a.2700.1]+    has isogeny class 450.a and model $y^2 + (x^3 + 1)y = x^5 + 3 x^4 + 3 x^3 + 3+    x^2 + x$.+- params:+    label: 450.a.36450.1+  number: '18.77899571854043724939357821'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/450/a/36450/1}[LMFDB 450.a.36450.1]+    has isogeny class 450.a and model $y^2 + (x^3 + 1)y = x^5 - 4 x^4 - 9 x^3 + 28+    x^2 - 6 x - 16$.+- params:+    label: 461.a.461.1+  number: '12.04843489716017965610631486'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/461/a/461/1}[LMFDB 461.a.461.1]+    has isogeny class 461.a and model $y^2 + x^3 y = x^5 - 3 x^3 + 3 x - 2$.+- params:+    label: 461.a.461.2+  number: '0.2458864264726567276756390789'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/461/a/461/2}[LMFDB 461.a.461.2]+    has isogeny class 461.a and model $y^2 + y = x^5 - x^4 - 39 x^3 + 10 x^2 + 272+    x - 306$.+- params:+    label: 464.a.29696.1+  number: '14.42143083210724472918897778'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/464/a/29696/1}[LMFDB 464.a.29696.1]+    has isogeny class 464.a and model $y^2 + (x + 1)y = 8 x^5 + 3 x^4 - 4 x^3 - 2+    x^2$.+- params:+    label: 464.a.29696.2+  number: '1.802678854013405591148622223'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/464/a/29696/2}[LMFDB 464.a.29696.2]+    has isogeny class 464.a and model $y^2 + xy = 4 x^5 + 33 x^4 + 72 x^3 + 16 x^2+    + x$.+- params:+    label: 464.a.464.1+  number: '14.42143083210724472918897778'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/464/a/464/1}[LMFDB 464.a.464.1]+    has isogeny class 464.a and model $y^2 + (x + 1)y = -x^6 - 2 x^5 - 2 x^4 - x^3$.+- params:+    label: 472.a.60416.1+  number: '7.278318326144016935362104615'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/472/a/60416/1}[LMFDB 472.a.60416.1]+    has isogeny class 472.a and model $y^2 + (x + 1)y = 8 x^5 + 5 x^4 + 4 x^3 + 2+    x^2$.+- params:+    label: 472.a.944.1+  number: '29.11327330457606774144841846'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/472/a/944/1}[LMFDB 472.a.944.1]+    has isogeny class 472.a and model $y^2 + (x^2 + 1)y = x^5 - x^4 - 2 x^3 + x$.+- params:+    label: 476.a.952.1+  number: '26.72233910632963251214860252'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/476/a/952/1}[LMFDB 476.a.952.1]+    has isogeny class 476.a and model $y^2 + (x^3 + 1)y = -5 x^4 + 7 x^3 + 25 x^2+    - 75 x + 54$.+- params:+    label: 484.a.1936.1+  number: '15.31896832265624037237930824'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/484/a/1936/1}[LMFDB 484.a.1936.1]+    has isogeny class 484.a and model $y^2 + y = x^6 + 2 x^4 + x^2$.+- params:+    label: 504.a.27216.1+  number: '7.782699444387423938615175676'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/504/a/27216/1}[LMFDB 504.a.27216.1]+    has isogeny class 504.a and model $y^2 + (x^3 + x)y = 3 x^4 + 15 x^2 + 21$.+- params:+    label: 523.a.523.1+  number: '24.81990412677571630041171344'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/523/a/523/1}[LMFDB 523.a.523.1]+    has isogeny class 523.a and model $y^2 + (x + 1)y = x^5 - x^4 - x^3$.+- params:+    label: 523.a.523.2+  number: '0.9927961650710286520164685376'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/523/a/523/2}[LMFDB 523.a.523.2]+    has isogeny class 523.a and model $y^2 + xy = x^5 - 31 x^4 - 110 x^3 + 21 x^2+    - x$.+- params:+    label: 529.a.529.1+  number: '30.06025585746256142607729105'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/529/a/529/1}[LMFDB 529.a.529.1]+    has isogeny class 529.a and model $y^2 + (x^3 + x + 1)y = -x^5$.+- params:+    label: 555.a.8325.1+  number: '25.69247202971451430840301627'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/555/a/8325/1}[LMFDB 555.a.8325.1]+    has isogeny class 555.a and model $y^2 + (x + 1)y = 3 x^5 - 2 x^4 - 4 x^3 + x^2+    + x$.+- params:+    label: 574.a.293888.1+  number: '11.54635017206091601529730074'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/574/a/293888/1}[LMFDB 574.a.293888.1]+    has isogeny class 574.a and model $y^2 + (x^2 + x)y = x^5 - x^4 - 3 x^2 + x ++    1$.+- params:+    label: 576.a.576.1+  number: '22.39625216818580607766497752'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/576/a/576/1}[LMFDB 576.a.576.1]+    has isogeny class 576.a and model $y^2 + (x^3 + x^2 + x + 1)y = -x^3 - x$.+- params:+    label: 576.b.147456.1+  number: '9.301119475821611039064116900'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/576/b/147456/1}[LMFDB 576.b.147456.1]+    has isogeny class 576.b and model $y^2 = x^6 + 2 x^4 + 2 x^2 + 1$.+- params:+    label: 578.a.2312.1+  number: '13.91029942184442728940055335'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/578/a/2312/1}[LMFDB 578.a.2312.1]+    has isogeny class 578.a and model $y^2 + (x^2 + x)y = x^5 - 2 x^4 + 2 x^3 - 2+    x^2 + x$.+- params:+    label: 587.a.587.1+  number: '29.51096406109354582967022954'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/587/a/587/1}[LMFDB 587.a.587.1]+    has isogeny class 587.a and model $y^2 + (x^3 + x + 1)y = -x^2 - x$.+- params:+    label: 588.a.18816.1+  number: '20.65814959093327320416213484'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/588/a/18816/1}[LMFDB 588.a.18816.1]+    has isogeny class 588.a and model $y^2 + (x^3 + 1)y = x^5 + x^4 + 5 x^2 + 12 x+    + 8$.+- params:+    label: 597.a.597.1+  number: '14.41161687922246816026056494'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/597/a/597/1}[LMFDB 597.a.597.1]+    has isogeny class 597.a and model $y^2 + y = x^5 + 2 x^4 + 3 x^3 + 2 x^2 + x$.+- params:+    label: 600.a.18000.1+  number: '18.93431868106961183611104952'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/600/a/18000/1}[LMFDB 600.a.18000.1]+    has isogeny class 600.a and model $y^2 + xy = 10 x^5 - 18 x^4 + 8 x^3 + x^2 -+    x$.+- params:+    label: 600.a.96000.1+  number: '9.467159340534805918055524762'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/600/a/96000/1}[LMFDB 600.a.96000.1]+    has isogeny class 600.a and model $y^2 + (x + 1)y = 4 x^5 + 5 x^4 + 3 x^3 + 2+    x^2$.+- params:+    label: 600.b.30000.1+  number: '8.316290505407428834943190971'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/600/b/30000/1}[LMFDB 600.b.30000.1]+    has isogeny class 600.b and model $y^2 + (x^3 + x)y = x^4 + x^2 - 3$.+- params:+    label: 600.b.450000.1+  number: '8.316290505407428834943190971'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/600/b/450000/1}[LMFDB 600.b.450000.1]+    has isogeny class 600.b and model $y^2 + (x^3 + x)y = -5 x^4 + 25 x^2 - 45$.+- params:+    label: 603.a.603.1+  number: '26.91001556363177690790850827'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/603/a/603/1}[LMFDB 603.a.603.1]+    has isogeny class 603.a and model $y^2 + (x^2 + 1)y = x^5 + 8 x^4 + 4 x^3 + 4+    x^2 + 2 x$.+- params:+    label: 603.a.603.2+  number: '26.91001556363177690790850827'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/603/a/603/2}[LMFDB 603.a.603.2]+    has isogeny class 603.a and model $y^2 + (x^2 + 1)y = x^5 - x^3 + x$.+- params:+    label: 604.a.9664.1+  number: '0.2917880340909438023610651534'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/604/a/9664/1}[LMFDB 604.a.9664.1]+    has isogeny class 604.a and model $y^2 + (x^2 + x + 1)y = 4 x^5 + 9 x^4 + 48 x^3+    - 4 x^2 - 53 x - 21$.+- params:+    label: 604.a.9664.2+  number: '23.63483076136644799124627742'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/604/a/9664/2}[LMFDB 604.a.9664.2]+    has isogeny class 604.a and model $y^2 + (x^3 + 1)y = -x^4 + x^3 + x^2 - x$.+- params:+    label: 630.a.34020.1+  number: '19.47088912974860787735976054'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/630/a/34020/1}[LMFDB 630.a.34020.1]+    has isogeny class 630.a and model $y^2 + (x^2 + x)y = 3 x^5 + 10 x^4 - 23 x^2+    - 6 x + 15$.+- params:+    label: 640.a.81920.1+  number: '7.405674177128772628232812421'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/640/a/81920/1}[LMFDB 640.a.81920.1]+    has isogeny class 640.a and model $y^2 + x^3 y = 3 x^4 + 13 x^2 + 20$.+- params:+    label: 640.a.81920.2+  number: '7.405674177128772628232812421'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/640/a/81920/2}[LMFDB 640.a.81920.2]+    has isogeny class 640.a and model $y^2 + x^3 y = -3 x^4 + 13 x^2 - 20$.+- params:+    label: 644.a.2576.1+  number: '3.928431134109850626488427461'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/644/a/2576/1}[LMFDB 644.a.2576.1]+    has isogeny class 644.a and model $y^2 + (x^2 + x)y = -5 x^6 + 11 x^5 - 20 x^4+    + 20 x^3 - 20 x^2 + 11 x - 5$.+- params:+    label: 644.a.659456.1+  number: '0.8729846964688556947752061026'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/644/a/659456/1}[LMFDB 644.a.659456.1]+    has isogeny class 644.a and model $y^2 + (x^2 + x)y = -3 x^6 - 13 x^5 + 4 x^4+    + 51 x^3 + 4 x^2 - 13 x - 3$.+- params:+    label: 644.b.14812.1+  number: '15.43510719899337302636569541'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/644/b/14812/1}[LMFDB 644.b.14812.1]+    has isogeny class 644.b and model $y^2 + (x^3 + 1)y = x^5 - x^4 - 4 x^3 + 5 x^2+    - x - 1$.+- params:+    label: 672.a.172032.1+  number: '1.113349301814943830917553304'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/672/a/172032/1}[LMFDB 672.a.172032.1]+    has isogeny class 672.a and model $y^2 + (x^3 + x)y = -x^6 - 16 x^4 - 75 x^2 ++    56$.+- params:+    label: 676.a.5408.1+  number: '20.16977983522340726059302496'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/676/a/5408/1}[LMFDB 676.a.5408.1]+    has isogeny class 676.a and model $y^2 + (x^3 + x^2 + x)y = x^3 + 3 x^2 + 3 x+    + 1$.+- params:+    label: 676.a.562432.1+  number: '6.723259945074469086864341653'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/676/a/562432/1}[LMFDB 676.a.562432.1]+    has isogeny class 676.a and model $y^2 + (x^3 + 1)y = 2 x^5 + 2 x^4 + 4 x^3 ++    2 x^2 + 2 x$.+- params:+    label: 676.b.17576.1+  number: '7.177120650242340022568216320'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/676/b/17576/1}[LMFDB 676.b.17576.1]+    has isogeny class 676.b and model $y^2 + (x^2 + x)y = -x^6 + 3 x^5 - 6 x^4 + 6+    x^3 - 6 x^2 + 3 x - 1$.+- params:+    label: 686.a.686.1+  number: '11.49165478948144714805112930'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/686/a/686/1}[LMFDB 686.a.686.1]+    has isogeny class 686.a and model $y^2 + (x^2 + x)y = x^5 + x^4 + 2 x^3 + x^2+    + x$.+- params:+    label: 688.a.2752.1+  number: '25.70729814990717701123340693'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/688/a/2752/1}[LMFDB 688.a.2752.1]+    has isogeny class 688.a and model $y^2 + y = 2 x^5 - 5 x^4 + 4 x^3 - x$.+- params:+    label: 688.a.704512.1+  number: '6.426824537476794252808351734'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/688/a/704512/1}[LMFDB 688.a.704512.1]+    has isogeny class 688.a and model $y^2 = 2 x^5 + 4 x^3 + x^2 + 2 x + 1$.+- params:+    label: 688.a.704512.2+  number: '6.426824537476794252808351734'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/688/a/704512/2}[LMFDB 688.a.704512.2]+    has isogeny class 688.a and model $y^2 = 2 x^5 - 7 x^4 - 8 x^3 + 2 x^2 + 4 x ++    1$.+- params:+    label: 691.a.691.1+  number: '18.81256891262843151418253621'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/691/a/691/1}[LMFDB 691.a.691.1]+    has isogeny class 691.a and model $y^2 + (x + 1)y = x^5 - x^3 - x^2$.+- params:+    label: 704.a.45056.1+  number: '11.97602710419342856089487448'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/704/a/45056/1}[LMFDB 704.a.45056.1]+    has isogeny class 704.a and model $y^2 + y = 4 x^5 + 4 x^4 - x^3 - 2 x^2$.+- params:+    label: 708.a.181248.1+  number: '0.3253436263090930861989774465'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/708/a/181248/1}[LMFDB 708.a.181248.1]+    has isogeny class 708.a and model $y^2 + (x^3 + 1)y = -x^6 - 4 x^5 + 9 x^4 + 48+    x^3 - 41 x^2 - 98 x - 36$.+- params:+    label: 708.a.19116.1+  number: '16.26718131545465430994887232'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/708/a/19116/1}[LMFDB 708.a.19116.1]+    has isogeny class 708.a and model $y^2 + (x^3 + 1)y = -x^5 + 4 x^2 + 4 x - 1$.+- params:+    label: 708.a.2832.1+  number: '16.26718131545465430994887232'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/708/a/2832/1}[LMFDB 708.a.2832.1]+    has isogeny class 708.a and model $y^2 + (x^2 + x + 1)y = x^5$.+- params:+    label: 709.a.709.1+  number: '18.36116163245614548037310111'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/709/a/709/1}[LMFDB 709.a.709.1]+    has isogeny class 709.a and model $y^2 + xy = x^5 - 2 x^2 + x$.+- params:+    label: 713.a.713.1+  number: '27.95788881235783899596312622'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/713/a/713/1}[LMFDB 713.a.713.1]+    has isogeny class 713.a and model $y^2 + (x^3 + x + 1)y = -x^5 - x$.+- params:+    label: 713.b.713.1+  number: '23.14988107670389907883138784'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/713/b/713/1}[LMFDB 713.b.713.1]+    has isogeny class 713.b and model $y^2 + (x^3 + x + 1)y = -x^4$.+- params:+    label: 720.a.6480.1+  number: '9.444268302255141344599789586'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/720/a/6480/1}[LMFDB 720.a.6480.1]+    has isogeny class 720.a and model $y^2 + (x^3 + x)y = 2 x^4 + 7 x^2 + 5$.+- params:+    label: 720.b.116640.1+  number: '14.45705774132695543640100863'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/720/b/116640/1}[LMFDB 720.b.116640.1]+    has isogeny class 720.b and model $y^2 + (x^3 + x)y = -6 x^4 + 39 x^2 - 90$.+- params:+    label: 726.a.1452.1+  number: '15.12408611092730690139582852'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/726/a/1452/1}[LMFDB 726.a.1452.1]+    has isogeny class 726.a and model $y^2 + (x^2 + 1)y = 2 x^5 + 2 x^4 + 6 x^3 -+    2 x^2 - x$.+- params:+    label: 731.a.12427.1+  number: '14.92677943436207031431594936'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/731/a/12427/1}[LMFDB 731.a.12427.1]+    has isogeny class 731.a and model $y^2 + (x^3 + x^2)y = x^5 + 2 x^4 - x - 3$.+- params:+    label: 741.a.28899.1+  number: '18.75684256809198078031270145'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/741/a/28899/1}[LMFDB 741.a.28899.1]+    has isogeny class 741.a and model $y^2 + (x + 1)y = -3 x^5 - x^4 + 2 x^2 + x$.+- params:+    label: 743.a.743.1+  number: '28.76539061736102992978107429'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/743/a/743/1}[LMFDB 743.a.743.1]+    has isogeny class 743.a and model $y^2 + (x^3 + x + 1)y = -x^4 + x^2$.+- params:+    label: 745.a.745.1+  number: '24.57283976052654794911342517'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/745/a/745/1}[LMFDB 745.a.745.1]+    has isogeny class 745.a and model $y^2 + (x^3 + x + 1)y = -x$.+- params:+    label: 762.a.3048.1+  number: '16.73344918309254302919366102'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/762/a/3048/1}[LMFDB 762.a.3048.1]+    has isogeny class 762.a and model $y^2 + (x^3 + x^2 + x)y = x^2 + x + 1$.+- params:+    label: 762.a.82296.1+  number: '16.73344918309254302919366102'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/762/a/82296/1}[LMFDB 762.a.82296.1]+    has isogeny class 762.a and model $y^2 + (x^2 + x)y = x^5 - 8 x^4 + 14 x^3 + 2+    x^2 - x$.+- params:+    label: 763.a.763.1+  number: '30.48575004522535920085251501'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/763/a/763/1}[LMFDB 763.a.763.1]+    has isogeny class 763.a and model $y^2 + (x^3 + x)y = -2 x^4 + 2 x^2 - x$.+- params:+    label: 768.a.1536.1+  number: '25.14674941491256855456653960'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/768/a/1536/1}[LMFDB 768.a.1536.1]+    has isogeny class 768.a and model $y^2 + y = 2 x^5 - x^4 - 3 x^3 + x$.+- params:+    label: 768.a.4608.1+  number: '12.57337470745628427728326980'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/768/a/4608/1}[LMFDB 768.a.4608.1]+    has isogeny class 768.a and model $y^2 + (x^3 + x^2 + x + 1)y = -x^3 - x^2 - x+    - 1$.+- params:+    label: 784.a.1568.1+  number: '20.79335121010696255321919782'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/784/a/1568/1}[LMFDB 784.a.1568.1]+    has isogeny class 784.a and model $y^2 + (x^3 + x)y = -2 x^4 + 3 x^2 - 2$.+- params:+    label: 784.a.43904.1+  number: '6.931117070035654184406399276'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/784/a/43904/1}[LMFDB 784.a.43904.1]+    has isogeny class 784.a and model $y^2 + (x^3 + x)y = 4 x^4 + 27 x^2 + 56$.+- params:+    label: 784.b.12544.1+  number: '11.27010029351507222440474365'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/784/b/12544/1}[LMFDB 784.b.12544.1]+    has isogeny class 784.b and model $y^2 + (x^3 + x)y = -1$.+- params:+    label: 784.b.25088.1+  number: '0.6261166829730595680224857584'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/784/b/25088/1}[LMFDB 784.b.25088.1]+    has isogeny class 784.b and model $y^2 + (x^2 + 1)y = -x^6 - 3 x^5 + 7 x^4 + 2+    x^3 - 49 x^2 + 41 x - 9$.+- params:+    label: 784.b.76832.1+  number: '3.756700097838357408134914550'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/784/b/76832/1}[LMFDB 784.b.76832.1]+    has isogeny class 784.b and model $y^2 + (x + 1)y = -x^6 + 4 x^5 - 4 x^4 - 2 x^3+    + 10 x - 9$.+- params:+    label: 784.c.614656.1+  number: '5.731485289101440494387615136'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/784/c/614656/1}[LMFDB 784.c.614656.1]+    has isogeny class 784.c and model $y^2 = x^5 - 4 x^4 - 13 x^3 - 9 x^2 - x$.+- params:+    label: 797.a.797.1+  number: '17.44098947627626520565187602'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/797/a/797/1}[LMFDB 797.a.797.1]+    has isogeny class 797.a and model $y^2 + y = x^5 - x^4 + x^3$.+- params:+    label: 800.a.1600.1+  number: '16.77015076139292791148777638'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/800/a/1600/1}[LMFDB 800.a.1600.1]+    has isogeny class 800.a and model $y^2 + (x^3 + x^2 + x + 1)y = -x^4 - x^2$.+- params:+    label: 800.a.409600.1+  number: '16.77015076139292791148777638'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/800/a/409600/1}[LMFDB 800.a.409600.1]+    has isogeny class 800.a and model $y^2 = x^6 - 2 x^2 + 1$.+- params:+    label: 800.a.8000.1+  number: '5.590050253797642637162592129'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/800/a/8000/1}[LMFDB 800.a.8000.1]+    has isogeny class 800.a and model $y^2 + (x^3 + x^2 + x + 1)y = -x^6 + 2 x^4 ++    4 x^3 + 2 x^2 - 1$.+- params:+    label: 807.a.2421.1+  number: '9.761140262957613257420905360'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/807/a/2421/1}[LMFDB 807.a.2421.1]+    has isogeny class 807.a and model $y^2 + (x^3 + x)y = x^5 - 2 x^3 - x^2 + 2 x+    - 1$.+- params:+    label: 810.a.196830.1+  number: '0.3289823157626603735056020514'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/810/a/196830/1}[LMFDB 810.a.196830.1]+    has isogeny class 810.a and model $y^2 + (x + 1)y = x^5 + 15 x^4 + 20 x^3 - 297+    x^2 + 94 x - 8$.+- params:+    label: 816.a.13872.1+  number: '22.16669692787501924452403723'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/816/a/13872/1}[LMFDB 816.a.13872.1]+    has isogeny class 816.a and model $y^2 + (x^3 + x^2)y = -2 x^4 + 6 x^2 - 8 x ++    3$.+- params:+    label: 816.a.39168.1+  number: '22.16669692787501924452403723'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/816/a/39168/1}[LMFDB 816.a.39168.1]+    has isogeny class 816.a and model $y^2 + (x^2 + 1)y = 3 x^5 - 4 x^3 - x^2 + x$.+- params:+    label: 816.b.52224.1+  number: '2.423742077271449078203055296'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/816/b/52224/1}[LMFDB 816.b.52224.1]+    has isogeny class 816.b and model $y^2 + (x^3 + x)y = -x^6 - 12 x^4 - 27 x^2 -+    17$.+- params:+    label: 826.a.11564.1+  number: '13.17448343507314962222933299'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/826/a/11564/1}[LMFDB 826.a.11564.1]+    has isogeny class 826.a and model $y^2 + (x^2 + x)y = x^5 + x^4 + 3 x^3 - 4 x^2+    - 4 x + 3$.+- params:+    label: 830.a.6640.1+  number: '23.47491713469872304349835866'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/830/a/6640/1}[LMFDB 830.a.6640.1]+    has isogeny class 830.a and model $y^2 + (x^3 + 1)y = -x^5 + x^4 - 2 x^2 + x ++    1$.+- params:+    label: 830.a.830000.1+  number: '5.868729283674680760874589666'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/830/a/830000/1}[LMFDB 830.a.830000.1]+    has isogeny class 830.a and model $y^2 + (x^2 + x)y = x^5 - 2 x^4 + 16 x^3 + 8+    x^2 + x$.+- params:+    label: 832.a.832.1+  number: '21.14821534737590344234962396'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/832/a/832/1}[LMFDB 832.a.832.1]+    has isogeny class 832.a and model $y^2 + (x^3 + x)y = x^5 - x^3 + x^2 + 2 x -+    1$.+- params:+    label: 834.a.1668.1+  number: '11.76351618255668262122669454'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/834/a/1668/1}[LMFDB 834.a.1668.1]+    has isogeny class 834.a and model $y^2 + (x^3 + 1)y = -x^2 + x - 1$.+- params:+    label: 841.a.841.1+  number: '14.28455671925849588123892420'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/841/a/841/1}[LMFDB 841.a.841.1]+    has isogeny class 841.a and model $y^2 + (x^3 + x^2 + x)y = x^4 + x^3 + 3 x^2+    + x + 2$.+- params:+    label: 847.a.847.1+  number: '20.30596137898254740951507105'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/847/a/847/1}[LMFDB 847.a.847.1]+    has isogeny class 847.a and model $y^2 + (x^3 + x^2 + x + 1)y = x^4 + x^3 + x^2$.+- params:+    label: 847.b.9317.1+  number: '16.82727124881458838085059429'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/847/b/9317/1}[LMFDB 847.b.9317.1]+    has isogeny class 847.b and model $y^2 + (x^2 + 1)y = x^5 + 2 x^4 - 3 x^3 + 2+    x^2 - x$.+- params:+    label: 847.c.9317.1+  number: '9.983399950485201184125312381'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/847/c/9317/1}[LMFDB 847.c.9317.1]+    has isogeny class 847.c and model $y^2 + (x^3 + x^2)y = x^4 + x^3 - x - 2$.+- params:+    label: 847.d.456533.1+  number: '9.829455333980068957200512987'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/847/d/456533/1}[LMFDB 847.d.456533.1]+    has isogeny class 847.d and model $y^2 + y = -x^6 - 9 x^5 - 22 x^4 + 3 x^3 + 37+    x^2 - 24 x + 4$.+- params:+    label: 847.d.847.1+  number: '1.179534640077608274864061558'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/847/d/847/1}[LMFDB 847.d.847.1]+    has isogeny class 847.d and model $y^2 + (x^3 + x^2 + x + 1)y = -12 x^6 - 15 x^5+    + 9 x^4 + 31 x^3 + 9 x^2 - 15 x - 12$.+- params:+    label: 856.a.1712.1+  number: '22.65384566628467976754192158'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/856/a/1712/1}[LMFDB 856.a.1712.1]+    has isogeny class 856.a and model $y^2 + (x^3 + x)y = -x^4 - x^3 + x$.+- params:+    label: 862.a.6896.1+  number: '23.92660509771110912862980413'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/862/a/6896/1}[LMFDB 862.a.6896.1]+    has isogeny class 862.a and model $y^2 + (x^2 + x)y = 4 x^5 + 6 x^4 - 3 x^2 -+    x$.+- params:+    label: 862.a.862.1+  number: '23.92660509771110912862980413'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/862/a/862/1}[LMFDB 862.a.862.1]+    has isogeny class 862.a and model $y^2 + (x^3 + 1)y = x^5 - 2 x^4 - 7 x^3 + 7+    x^2 + 2 x + 5$.+- params:+    label: 862.b.862.1+  number: '27.48899057752936272094588589'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/862/b/862/1}[LMFDB 862.b.862.1]+    has isogeny class 862.b and model $y^2 + (x^3 + x)y = -2 x^4 + 3 x^2 - x - 1$.+- params:+    label: 864.a.1728.1+  number: '18.14296590467000967231465706'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/864/a/1728/1}[LMFDB 864.a.1728.1]+    has isogeny class 864.a and model $y^2 + (x^3 + x^2 + x + 1)y = x^4 + x^2$.+- params:+    label: 864.a.221184.1+  number: '18.14296590467000967231465706'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/864/a/221184/1}[LMFDB 864.a.221184.1]+    has isogeny class 864.a and model $y^2 + x^3 y = x^5 - 4 x^4 - 6 x^3 + 33 x^2+    - 36 x + 12$.+- params:+    label: 864.a.442368.1+  number: '9.071482952335004836157328533'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/864/a/442368/1}[LMFDB 864.a.442368.1]+    has isogeny class 864.a and model $y^2 = x^6 - 4 x^4 + 6 x^2 - 3$.+- params:+    label: 880.a.225280.1+  number: '1.515081981797020835404899726'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/880/a/225280/1}[LMFDB 880.a.225280.1]+    has isogeny class 880.a and model $y^2 = x^5 + 13 x^4 + 55 x^3 + 76 x^2 - 44$.+- params:+    label: 882.a.302526.1+  number: '12.54262310956065397709650759'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/882/a/302526/1}[LMFDB 882.a.302526.1]+    has isogeny class 882.a and model $y^2 + (x^3 + 1)y = x^5 - 2 x^4 - 5 x^3 + 11+    x^2 - 12 x + 5$.+- params:+    label: 882.a.63504.1+  number: '12.54262310956065397709650759'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/882/a/63504/1}[LMFDB 882.a.63504.1]+    has isogeny class 882.a and model $y^2 + (x^2 + x)y = x^5 + x^4 + x^3 + 3 x^2+    + 3 x + 1$.+- params:+    label: 886.a.3544.1+  number: '24.08547171248876178872970699'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/886/a/3544/1}[LMFDB 886.a.3544.1]+    has isogeny class 886.a and model $y^2 + (x^3 + x)y = -x^4 - x + 1$.+- params:+    label: 893.a.893.1+  number: '23.40243481037167042315048833'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/893/a/893/1}[LMFDB 893.a.893.1]+    has isogeny class 893.a and model $y^2 + (x^3 + x + 1)y = -x^4 - x^2$.+- params:+    label: 909.a.8181.1+  number: '21.80554843268429195244721538'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/909/a/8181/1}[LMFDB 909.a.8181.1]+    has isogeny class 909.a and model $y^2 + xy = 3 x^5 - 7 x^4 + x^3 + 6 x^2 - 3+    x$.+- params:+    label: 909.a.909.1+  number: '21.80554843268429195244721538'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/909/a/909/1}[LMFDB 909.a.909.1]+    has isogeny class 909.a and model $y^2 + (x^3 + x)y = -x^4 + x^2 - x$.+- params:+    label: 925.a.23125.1+  number: '20.87893399657743451578615273'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/925/a/23125/1}[LMFDB 925.a.23125.1]+    has isogeny class 925.a and model $y^2 + xy = 5 x^5 + x^4 - 19 x^3 + 18 x^2 -+    5 x$.+- params:+    label: 925.a.925.1+  number: '20.87893399657743451578615273'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/925/a/925/1}[LMFDB 925.a.925.1]+    has isogeny class 925.a and model $y^2 + (x + 1)y = -x^5 + 2 x^4 - x^3 - x^2$.+- params:+    label: 930.a.930.1+  number: '24.84648867296860639657622856'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/930/a/930/1}[LMFDB 930.a.930.1]+    has isogeny class 930.a and model $y^2 + (x^2 + x)y = -x^5 - 7 x^4 + 37 x^2 -+    45 x + 15$.+- params:+    label: 932.a.3728.1+  number: '25.16836447211651148952328278'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/932/a/3728/1}[LMFDB 932.a.3728.1]+    has isogeny class 932.a and model $y^2 + y = x^6 - 2 x^5 + x^4 + x^2 - x$.+- params:+    label: 936.a.1872.1+  number: '7.131061142300018139648377262'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/936/a/1872/1}[LMFDB 936.a.1872.1]+    has isogeny class 936.a and model $y^2 + (x^3 + x)y = -x^6 - 9 x^4 - 32 x^2 -+    39$.+- params:+    label: 953.a.953.1+  number: '24.88668171534092899854470851'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/953/a/953/1}[LMFDB 953.a.953.1]+    has isogeny class 953.a and model $y^2 + (x^3 + x + 1)y = x^3 + x^2$.+- params:+    label: 960.a.245760.1+  number: '6.402317452558049353443606128'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/960/a/245760/1}[LMFDB 960.a.245760.1]+    has isogeny class 960.a and model $y^2 = 2 x^5 + x^4 + 4 x^3 + x^2 + 2 x$.+- params:+    label: 960.a.368640.1+  number: '6.402317452558049353443606128'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/960/a/368640/1}[LMFDB 960.a.368640.1]+    has isogeny class 960.a and model $y^2 = x^5 + 13 x^4 + 44 x^3 + 13 x^2 + x$.+- params:+    label: 960.a.983040.1+  number: '6.402317452558049353443606128'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/960/a/983040/1}[LMFDB 960.a.983040.1]+    has isogeny class 960.a and model $y^2 = x^5 - 2 x^4 - x^3 - 2 x^2 + x$.+- params:+    label: 961.a.923521.1+  number: '2.246438619380203930566648340'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/961/a/923521/1}[LMFDB 961.a.923521.1]+    has isogeny class 961.a and model $y^2 + (x^3 + x^2 + 1)y = -5 x^4 + 4 x^3 + 3+    x^2 - 2 x - 3$.+- params:+    label: 961.a.961.1+  number: '0.2246438619380203930566648340'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/961/a/961/1}[LMFDB 961.a.961.1]+    has isogeny class 961.a and model $y^2 + (x^3 + x + 1)y = -x^6 - x^5 - 7 x^4 ++    74 x^3 - 145 x^2 + 99 x - 33$.+- params:+    label: 961.a.961.2+  number: '5.616096548450509826416620852'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/961/a/961/2}[LMFDB 961.a.961.2]+    has isogeny class 961.a and model $y^2 + (x^3 + x + 1)y = -x^6 + 2 x^5 - 8 x^4+    + 12 x^3 - 18 x^2 + 12 x - 7$.+- params:+    label: 961.a.961.3+  number: '11.23219309690101965283324170'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/961/a/961/3}[LMFDB 961.a.961.3]+    has isogeny class 961.a and model $y^2 + (x^3 + x + 1)y = x^5 + x^4 + x^3 - x+    - 1$.+- params:+    label: 966.a.834624.1+  number: '9.526770801078762144556769365'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/966/a/834624/1}[LMFDB 966.a.834624.1]+    has isogeny class 966.a and model $y^2 + (x^2 + x)y = x^5 - x^4 + x^3 + x^2 -+    x + 1$.+- params:+    label: 968.a.1936.1+  number: '26.98675025097742069166883368'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/968/a/1936/1}[LMFDB 968.a.1936.1]+    has isogeny class 968.a and model $y^2 + y = x^6 - x^4$.+- params:+    label: 968.a.234256.1+  number: '5.397350050195484138333766737'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/968/a/234256/1}[LMFDB 968.a.234256.1]+    has isogeny class 968.a and model $y^2 + x^3 y = 6 x^4 + 47 x^2 + 121$.+- params:+    label: 970.a.1940.1+  number: '17.37577237002508223734326945'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/970/a/1940/1}[LMFDB 970.a.1940.1]+    has isogeny class 970.a and model $y^2 + (x + 1)y = x^5 + x^4 + x^3 + x^2$.+- params:+    label: 971.a.971.1+  number: '29.64711080112498856304281948'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/971/a/971/1}[LMFDB 971.a.971.1]+    has isogeny class 971.a and model $y^2 + y = x^5 - 2 x^3 + x$.+- params:+    label: 975.a.63375.1+  number: '14.35629040776369988366316747'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/975/a/63375/1}[LMFDB 975.a.63375.1]+    has isogeny class 975.a and model $y^2 + (x^3 + 1)y = -x^5 + x^3 + 2 x^2 + x -+    1$.+- params:+    label: 976.a.999424.1+  number: '12.90036505815206467681008301'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/976/a/999424/1}[LMFDB 976.a.999424.1]+    has isogeny class 976.a and model $y^2 + (x + 1)y = x^6 - 2 x^5 + 2 x^3 - x^2$.+- params:+    label: 980.a.7840.1+  number: '14.03151913657681812783628370'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/980/a/7840/1}[LMFDB 980.a.7840.1]+    has isogeny class 980.a and model $y^2 + (x^2 + x + 1)y = -x^6 + 3 x^5 - 3 x^4+    - x$.+- params:+    label: 980.a.878080.1+  number: '4.677173045525606042612094566'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/980/a/878080/1}[LMFDB 980.a.878080.1]+    has isogeny class 980.a and model $y^2 + (x^3 + 1)y = -x^6 + x^5 - 4 x^4 + 2 x^3+    - 4 x^2 + x - 1$.+- params:+    label: 990.a.240570.1+  number: '3.087468421849187640196608360'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/990/a/240570/1}[LMFDB 990.a.240570.1]+    has isogeny class 990.a and model $y^2 + (x^2 + x)y = 3 x^5 + 28 x^4 + 72 x^3+    + 28 x^2 + 3 x$.+- params:+    label: 990.a.8910.1+  number: '6.174936843698375280393216721'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/990/a/8910/1}[LMFDB 990.a.8910.1]+    has isogeny class 990.a and model $y^2 + (x^2 + x)y = 3 x^5 + 4 x^4 + 7 x^3 ++    4 x^2 + 3 x$.+- params:+    label: 997.a.997.1+  number: '21.58962105557654397482680362'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/997/a/997/1}[LMFDB 997.a.997.1]+    has isogeny class 997.a and model $y^2 + xy = x^5 - 8 x^4 + 16 x^3 - x$.+- params:+    label: 997.a.997.2+  number: '21.58962105557654397482680362'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/997/a/997/2}[LMFDB 997.a.997.2]+    has isogeny class 997.a and model $y^2 + (x + 1)y = x^5 + x^4$.+- params:+    label: 997.b.997.1+  number: '19.93284336545544441524084864'+  comment: Curve HREF{https://www.lmfdb.org/Genus2Curve/Q/997/b/997/1}[LMFDB 997.b.997.1]+    has isogeny class 997.b and model $y^2 + y = x^5 - 2 x^4 + 2 x^3 - x^2$. 

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