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
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Pythonͱֶͱ ଟ໘ମͱϖʔύʔΫϥϑτ ͱϕϧψʔΠͱͱాٶܕͱࢲ Ճ౻ެҰ @hamukazu 201810݄8 PyLadiesTokyo4पه೦ύʔςΟ
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ࣗݾհ Ճ౻ެҰʢ͖Έ͔ͣʣ Twitter: @hamukazu • ֶΤόϯδΣϦετ • ےτϨܯ • ϏʔϧΫζ ࠷ۙຊग़ͨ͠Αʂ ങͬͯͶ— http://bit.ly/mlessence
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• ਖ਼ेೋ໘ମͷݟऔΓਤΛඳ͖ͳ͍͞ • ਖ਼ेೋ໘ମͷɺลɺ໘ͷΛͦΕͧΕ͑ͳ͍͞
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ղ ུ
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͔֬ΊΔํ๏ ࣮Λ࡞Δ
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ଟ໘ମϖʔύʔΫϥϑτ • 2017ʹΓ࢝ΊͨʢϒϩάͰൃදʣ • ࡞ϓϩάϥϜΛΦʔϓϯιʔεͰެ։ • ࠷ॳਖ਼ଟ໘ମ • 2018PyConJP SprintsͰਖ਼ଟ໘ମʢ४ਖ਼ଟ໘ମʣ https://github.com/hamukazu/craft_regpolyhed https://github.com/hamukazu/craft_truncated
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ྫ ਖ਼ेೋ໘ମ ਖ਼ೋे໘ମ
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ਖ਼ೋे໘ମ ྫ ʢ2ͭ߹Θͤͯ1ͭͷཱମʣ
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Ͳ͏ͬͯ࡞Δ͔ • ݴޠͪΖΜPython • Reportlabͱ͍͏ϥΠϒϥϦ • ͋ͱֶతܭࢉʢϕΫτϧܭࢉͱճసߦྻʣ • ࣗಈඳը͢ΔΞϧΰϦζϜΛ࡞ͬͨͷͰͳ͘ɺҰͭҰͭ ઢΛҾ͘ϓϩάϥϜΛॻ͍ͨ
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ReportLab PythonͰPDFϑΝΠϧΛฤूͰ͖ΔϥΠϒϥϦ اۀ͕͍ͬͯΔΦʔϓϯιʔε ReportLabϥΠϒϥϦ໊͔ͭاۀ໊
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ֶతܭࢉ ✓ cos ✓ sin ✓ sin ✓ cos ✓ ◆ ✓ x y ◆ = ✓ x cos ✓ y sin ✓ x sin ✓ + y cos ✓ ◆ (x,y)ΛݪΛத৺ʹθճసͤͨ͞ΛٻΊΔ ඞཁͳܭࢉ͜ΕͱɺϕΫτϧجຊܭࢉʢɾࠩɾεΧϥʔഒʣ͚ͩ
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ਖ਼ޒ֯ܗͷඳ͖ํ 108° 72° A1 A2 A3 − → OA3 = − → OA2 + − − − → A2A3 = − → OA2 + cos 72◦ − sin 72◦ sin 72◦ cos 72◦ − − − → A1A2 ͜ΕΛ܁ΓฦͤΑ͍
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࣍ʹఔ
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ඞཁͳͷ φ-022 ʢಛްޱʣ ϓϥε͞Έ ϑΟοτΧʔϒ ϓϨϛΞϜνλϯ ʢϕϧψʔΠۂઢʣ λϛϠ ΫϥϑτϘϯυ
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ϕϧψʔΠۂઢ Ωλʔʂ
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ఆٛʢϕϧψʔΠۂઢʣ ฏ໘ͷۃ࠲ඪදࣔɹɹɹʹରͯ͠ Ͱද͞ΕΔۂઢΛϕϧψʔΠۂઢͱݺͿ ఆཧ ݪ͔Βग़ΔઢͱϕϧψʔΠۂઢͷͳ֯͢ҰఆͰ͋Δ r = aebθ ূ໌ ಡऀͷԋशͱ͢Δ (r, θ)
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࡞Γํͷίπ • ંΓఆنΛͬͯંΔ • ͘Β͍ΈཱͯͯͨΒҰணࡎΛס͔ͯ͠ݻఆ͢Δ • ͷΓ͠Ζ͕ͳ͍໘͕͋ΔͷͰͦΕΛ࠷ޙʹด͡Δ
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TODO • ϦϑΝΫλϦϯάͯ͠ύοέʔδԽ • pip install͍ͨ͠ΑͶʁ • ࡞ΓํͷίπͷυΩϡϝϯτӳ༁ͯ͠ެ։