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
Sponsored
·
Your Podcast. Everywhere. Effortlessly.
Share. Educate. Inspire. Entertain. You do you. We'll handle the rest.
→
Y Enokida
August 23, 2019
Education
1.1k
0
Share
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
920
Other Decks in Education
See All in Education
Catecismo 26 #2 - Do Credo; Introdução ao 1º artigo
cm_manaus
0
110
2026年度春学期 統計学 第1回 イントロダクション ー 統計的なものの見方・考え方について (2026. 4. 9)
akiraasano
PRO
0
140
Measuring what matters
jonoalderson
0
370
Managing Complexity: India’s Semiconductor Ambitions & New Industrial Policy
vyadav
0
160
Implicit and Cross-Device Interaction - Lecture 10 - Next Generation User Interfaces (4018166FNR)
signer
PRO
2
2.3k
Data Management and Analytics Specialisation
signer
PRO
0
1.8k
Interaction - Lecture 10 - Information Visualisation (4019538FNR)
signer
PRO
0
2.6k
吉祥寺.pmは1つじゃない — 複数イベント並走運営の12年 —
magnolia
0
1.2k
LinkedIn
matleenalaakso
0
4.2k
Virtual and Augmented Reality - Lecture 8 - Next Generation User Interfaces (4018166FNR)
signer
PRO
0
2.3k
「機械学習と因果推論」入門 ⑤ 因果効果推定の一般化
masakat0
0
100
Curso de Consagração ao Sagrado Coração de Jesus - O Sagrado Coração na História (Aula 01)
cm_manaus
0
190
Featured
See All Featured
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
Darren the Foodie - Storyboard
khoart
PRO
3
3.4k
What's in a price? How to price your products and services
michaelherold
247
13k
Technical Leadership for Architectural Decision Making
baasie
3
390
16th Malabo Montpellier Forum Presentation
akademiya2063
PRO
0
140
The SEO identity crisis: Don't let AI make you average
varn
0
480
A Soul's Torment
seathinner
6
2.9k
Unlocking the hidden potential of vector embeddings in international SEO
frankvandijk
0
830
Neural Spatial Audio Processing for Sound Field Analysis and Control
skoyamalab
0
310
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
34
2.8k
The Curse of the Amulet
leimatthew05
1
13k
The Illustrated Children's Guide to Kubernetes
chrisshort
51
52k
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