Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
算数の闇、世界の光
Search
Y Enokida
August 23, 2019
Education
1.1k
0
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
算数の闇、世界の光
社内 Tech Talk で算数について喋ったときのスライドです
Y Enokida
August 23, 2019
More Decks by Y Enokida
See All by Y Enokida
線型計算の数理入門 / Introduction to Theoretical Numerical Linear Algebra
xenolay
0
750
RSA 最速理解チャレンジ / Introduction to RSA
xenolay
1
930
Other Decks in Education
See All in Education
Dashboards - Lecture 11 - Information Visualisation (4019538FNR)
signer
PRO
1
2.8k
[2026前期火5] 論理学(京都大学文学部 前期 第10回)「論理学の哲学——意味とは何か(Tonkと推論主義)」
yatabe
0
230
生成AI時代のエンジニア育成について考えてみた
akasan
0
190
アラムコSTEAMチャレンジ 実践報告書
codeforeveryone
0
190
AIってなぁに?
kenichiota0711
0
310
2026年度春学期 統計学 第6回 データの関係を知る(1)ー 相関関係 (2026. 5. 14)
akiraasano
PRO
0
190
[2026前期火5] 論理学(京都大学文学部 前期 第11回)「ハーモニー:三層モデルと保存拡大」
yatabe
0
190
プロポーザルを書く技術とアンチパターン/proposal-writing-and-antipatterns
moriyuya
13
3.6k
sepm-training-sample
levii
0
110
第2部-高校生とAI活用/high-school2026-2
okana2ki
0
110
Lectura 1 (PIT : Python Basico)
robintux
0
430
Throw Yourself In! - How I've learned English and What I'm Facing
georgeorge
1
210
Featured
See All Featured
Site-Speed That Sticks
csswizardry
13
1.4k
Embracing the Ebb and Flow
colly
88
5.1k
Measuring Dark Social's Impact On Conversion and Attribution
stephenakadiri
2
240
svc-hook: hooking system calls on ARM64 by binary rewriting
retrage
2
420
brightonSEO & MeasureFest 2025 - Christian Goodrich - Winning strategies for Black Friday CRO & PPC
cargoodrich
3
760
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
Improving Core Web Vitals using Speculation Rules API
sergeychernyshev
21
1.6k
Information Architects: The Missing Link in Design Systems
soysaucechin
0
1k
Groundhog Day: Seeking Process in Gaming for Health
codingconduct
0
260
A better future with KSS
kneath
240
18k
The Power of CSS Pseudo Elements
geoffreycrofte
82
6.5k
Java REST API Framework Comparison - PWX 2021
mraible
34
9.6k
Transcript
ࢉͷҋɺੈքͷޫ ΤϜεϦʔגࣜձࣾ AIɾػցֶशνʔϜ ӿా༸հ 2019/08/23
ͲͪΒ͞·Ͱ͔͢ ӿా༸հʢ͑ͷ͖ͩɹΑ͏͚͢ʣ AIɾػցֶशνʔϜॴଐ
͖͢ͳͷɿֶͱήʔϜ աڈͷ Tech Talk Ͱͬͨ͜ͱ ४ղੳ σʔλϕʔεͷ ͱݴ͍ͭͭݍͷ ࠓݍͱؔܕͷΛ͢ΔͭΓͩͬͨ
͍·͔Β ࢉͷΛ͠·͢
Α͋͘Δओு ʮখֶߍͰ xx ࢉΛΔͷແବ͔ͩΒํఔࣜΛڭ͑Ε͍͍͡ΌΜʯ શମͷඪ ͷ͝ͱͦΜͳʹ୯७͡Όͳ͍͜ͱΛ͑Δ ࢉڭ͑ΔͷڭΘΔͷ͍͠ʂ தֶडݧࢉΛ೦಄ʹஔ͍ͯ͠·͢ ֶੜ࣌ʹक़ߨࢣΛ͍ͬͯͨܦݧΛͱʹ͍ͯ͠·͢
લͷখඪ நͰԥΒΕΔͭΒΈΛ࣮ײ͍ͯͨͩ͘͠
ઌ΄Ͳͷओுͷݴ༿Λิ͏ ʮখֶߍͰʢ۩ମతͰ൚༻ੑͷͳ͍ʣ xx ࢉΛΔͷແବ͔ͩΒʢΑΓந తͰ൚༻ੑͷ͋ΔʣํఔࣜΛڭ͑Ε͍͍͡ΌΜʯ ҰൠԽ ʮখֶߍͰʢ۩ମతͰ൚༻ੑͷͳ͍ʣ xx ΛΔͷແବ͔ͩΒʢΑΓநత Ͱ൚༻ੑͷ͋Δʣ
yy Λڭ͑Ε͍͍͡ΌΜʯ ۩ମྫΛೖ ʮখֶߍͰʢ۩ମతͰ൚༻ੑͷͳ͍ʣํܗͷ໘ੵͷެࣜΛΔͷແବ͔ͩ ΒʢΑΓநతͰ൚༻ੑͷ͋ΔʣଌΛڭ͑Ε͍͍͡ΌΜʯ
খֶੜ͚ͱݴΘΕ͍ͯΔ ͨͯ 3cmɼΑ͜ 5cm ͷํܗ͕͋Γ·͢ɽ໘ੵ͍ͭ͘Ͱ͔͢ɽ ͑ɿ15cm2 ͖ͬ͞ͷʹج͍ͮͨ߹ ͷਤܗ A
R2 ͷۣܗͳͷͰɺಛʹՄଌू߹Ͱ͋Δɻ͕ͨͬ͠ ͯ A ͷࢦࣔവՄଌͰɺͦͷ Lebesgue ଌʹؔ͢Δੵ Riemann ੵͰܭࢉͰ͖Δ͔Βɺࢦࣔവʹର͢Δ Fubini ͷఆཧ ͱซͤͯ R 1Ad— = R 3 0 R 5 0 dxdy = R 3 0 5dy = 15ɻ͕ͨͬͯ͠ٻ ΊΔ໘ੵ 15cm2 Ͱ͋Δɻ ͜ΕΛখֶੜʹڭ͑Δ͜ͱʹͳΔ ͖͋Β͔ͳਓݖ৵
લͷ݁ நͰ͍͖ͳΓԥΒΕΔͱͭΒ͍
ٙ ํఔࣜখֶੜʹநతͰͭΒ͍ͷͳͷ͔ʁ ͨ͑͜ɿΓํ࣍ୈ ͖ͬ͞ΑΓ͋Δҙຯਂࠁ େֶֶΘ͔Βͳ͍͜ͱͷ΄͏͕ଟ͍ͷͰٯʹ OK ํఔࣜڭ͑ํΛؒҧ͑Δͱେมͳ͜ͱʹͳΔ େਓ͕ํఔࣜΛͳ·͑͡Δ͍ͤͰେมͳ͜ͱʹͳΓ͍͢ ޙͷখඪ ํఔࣜʹؔ͢Δɺখֶੜʹͱͬͯͷۤ͠ΈϙΠϯτΛ͑Δ
ͳͥํఔࣜΛڭ͑ͳ͍ͷ͔ʁ ˢ࣭ͷํΛؒҧ͍͑ͯΔ ํఔࣜதֶडݧͰश͍ͬͯΔͱݴͬͯྑ͍
ྫ ࢞ͱຓͷஷۚͷ߹ܭ 6600 ԁͰɺຓͷஷۚͷ 2 ഒ࢞ͷஷۚΑΓ 1800 ԁଟ͍ͱ͖ɺຓͷஷ͍ۚ͘ΒͰ͔͢ɻ ղ ຓͷஷۚΛ
1 ‚ͱ͢Δͱɺ࢞ͷஷۚ 2 ‚-1800 ͳͷͰɺ 3 ‚-1800=6600 Ͱ͋Δɻ͕ͨͬͯ͠ 3 ‚=8400 ͔ͩΒ 1 ‚=2800ɻͳͷͰ 2800 ԁɻ ҙ 1 ‚Λ x ͱॻ͚ͨͩͷҰ࣍ํఔࣜͷ
ઌఔͷղ 6 ੜʹ͍͍ͨͯཧղͯ͠Β͑Δ 5 ੜଟ͘ཧղͯ͘͠ΕΔ 4 ੜཧղͯ͘͠Εͳ͍ 1 ‚͕Կͳͷ͔Λཧղͯ͘͠Εͳ͍έʔε͕ଟൃ͢Δ ղܾ๏
ઢਤΛॻ͘ 1 ‚ ΛͰݟ͔ͯΔܗͰද͢͜ͱͰɺ ʮม֓೦ͷ׳ΕʯΛ࡞Δ தߴͷֶͲ͜Ζ͔ੜ֔͑ΔεΩϧɺແବʹ͢Δ΄͏͕͍͠
ͦͷଞͷۤ͠ΈϙΠϯτҰཡ ΞϧϑΝϕοτ͕ॻ͚ͳ͍ ٯࢉΛؒҧ͑Δ ফڈ๏Λ͏ࡍͷެഒͷܭࢉ͕͍ or Ͱ͖ͳ͍ ૯ͯ͡ ͍Ζ͍Ζͳͱ͜Ζ͕ࢠڙʹͱ͍ͬͯ͠ ͱ͍͏͜ͱΛཧղ͢Δͷେਓʹͱ͍ͬͯ͠
·ͱΊ ࢉͷΛ͠·ͨ͠ ํఔࣜΛѻ͍ͬͯΔ ํఔࣜΛѻ͏աఔʹݱΕΔߟ͑ํຊʹ͍͠ ͜ͷ͠͞͠͠ΕڈΒΕͯ͠·͏ ͠͞ΛΕͯํఔࣜΛ͑Δ͜ͱࣗମɺΑ͍ڭҭͷূͳͷͰ