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Pythonと数学と 多面体とペーパークラフトとベルヌーイと長門屋と田宮模型と私
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Kimikazu Kato
October 08, 2018
1
1.8k
Pythonと数学と 多面体とペーパークラフトとベルヌーイと長門屋と田宮模型と私
2018年10月8日PyLadies Tokyo 4周年記念パーティでのLTです。
Kimikazu Kato
October 08, 2018
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Transcript
Pythonͱֶͱ ଟ໘ମͱϖʔύʔΫϥϑτ ͱϕϧψʔΠͱͱాٶܕͱࢲ Ճ౻ެҰ @hamukazu 201810݄8 PyLadiesTokyo4पه೦ύʔςΟ
ࣗݾհ Ճ౻ެҰʢ͖Έ͔ͣʣ Twitter: @hamukazu • ֶΤόϯδΣϦετ • ےτϨܯ • ϏʔϧΫζ
࠷ۙຊग़ͨ͠Αʂ ങͬͯͶ— http://bit.ly/mlessence
• ਖ਼ेೋ໘ମͷݟऔΓਤΛඳ͖ͳ͍͞ • ਖ਼ेೋ໘ମͷɺลɺ໘ͷΛͦΕͧΕ͑ͳ͍͞
ղ ུ
͔֬ΊΔํ๏ ࣮Λ࡞Δ
ଟ໘ମϖʔύʔΫϥϑτ • 2017ʹΓ࢝ΊͨʢϒϩάͰൃදʣ • ࡞ϓϩάϥϜΛΦʔϓϯιʔεͰެ։ • ࠷ॳਖ਼ଟ໘ମ • 2018PyConJP SprintsͰਖ਼ଟ໘ମʢ४ਖ਼ଟ໘ମʣ
https://github.com/hamukazu/craft_regpolyhed https://github.com/hamukazu/craft_truncated
ྫ ਖ਼ेೋ໘ମ ਖ਼ೋे໘ମ
ਖ਼ೋे໘ମ ྫ ʢ2ͭ߹Θͤͯ1ͭͷཱମʣ
Ͳ͏ͬͯ࡞Δ͔ • ݴޠͪΖΜPython • Reportlabͱ͍͏ϥΠϒϥϦ • ͋ͱֶతܭࢉʢϕΫτϧܭࢉͱճసߦྻʣ • ࣗಈඳը͢ΔΞϧΰϦζϜΛ࡞ͬͨͷͰͳ͘ɺҰͭҰͭ ઢΛҾ͘ϓϩάϥϜΛॻ͍ͨ
ReportLab PythonͰPDFϑΝΠϧΛฤूͰ͖ΔϥΠϒϥϦ اۀ͕͍ͬͯΔΦʔϓϯιʔε ReportLabϥΠϒϥϦ໊͔ͭاۀ໊
ֶతܭࢉ ✓ cos ✓ sin ✓ sin ✓ cos ✓
◆ ✓ x y ◆ = ✓ x cos ✓ y sin ✓ x sin ✓ + y cos ✓ ◆ (x,y)ΛݪΛத৺ʹθճసͤͨ͞ΛٻΊΔ ඞཁͳܭࢉ͜ΕͱɺϕΫτϧجຊܭࢉʢɾࠩɾεΧϥʔഒʣ͚ͩ
ਖ਼ޒ֯ܗͷඳ͖ํ 108° 72° A1 A2 A3 − → OA3 =
− → OA2 + − − − → A2A3 = − → OA2 + cos 72◦ − sin 72◦ sin 72◦ cos 72◦ − − − → A1A2 ͜ΕΛ܁ΓฦͤΑ͍
࣍ʹఔ
ඞཁͳͷ φ-022 ʢಛްޱʣ ϓϥε͞Έ ϑΟοτΧʔϒ ϓϨϛΞϜνλϯ ʢϕϧψʔΠۂઢʣ λϛϠ ΫϥϑτϘϯυ
ϕϧψʔΠۂઢ Ωλʔʂ
ఆٛʢϕϧψʔΠۂઢʣ ฏ໘ͷۃ࠲ඪදࣔɹɹɹʹରͯ͠ Ͱද͞ΕΔۂઢΛϕϧψʔΠۂઢͱݺͿ ఆཧ ݪ͔Βग़ΔઢͱϕϧψʔΠۂઢͷͳ֯͢ҰఆͰ͋Δ r = aebθ ূ໌ ಡऀͷԋशͱ͢Δ
(r, θ)
࡞Γํͷίπ • ંΓఆنΛͬͯંΔ • ͘Β͍ΈཱͯͯͨΒҰணࡎΛס͔ͯ͠ݻఆ͢Δ • ͷΓ͠Ζ͕ͳ͍໘͕͋ΔͷͰͦΕΛ࠷ޙʹด͡Δ
TODO • ϦϑΝΫλϦϯάͯ͠ύοέʔδԽ • pip install͍ͨ͠ΑͶʁ • ࡞ΓํͷίπͷυΩϡϝϯτӳ༁ͯ͠ެ։