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
HajimetenoLT vol.17
Search
Sponsored
·
Your Podcast. Everywhere. Effortlessly.
Share. Educate. Inspire. Entertain. You do you. We'll handle the rest.
→
hashimoto-kei
November 22, 2025
Science
220
1
Share
HajimetenoLT vol.17
⚡️初めてのLT会 Vol.17 に登壇した際の資料です。
https://bootcamp.fjord.jp/events/187
hashimoto-kei
November 22, 2025
More Decks by hashimoto-kei
See All by hashimoto-kei
AkarengaLT vol.43
hashimoto_kei
0
75
Offline Meetup | Fukuoka Rubyist Kaigi 05 Day0
hashimoto_kei
0
85
AkarengaLT vol.41
hashimoto_kei
1
130
AkarengaLT vol.40
hashimoto_kei
0
92
AkarengaLT vol.38
hashimoto_kei
1
260
AkarengaLT vol.37
hashimoto_kei
0
120
AkarengaLT vol.36
hashimoto_kei
0
110
AkarengaLT vol.35
hashimoto_kei
0
210
Boast Code Party | RubyKaigi 2025 After Event
hashimoto_kei
2
380
Other Decks in Science
See All in Science
20251212_LT忘年会_データサイエンス枠_新川.pdf
shinpsan
0
270
データから見る勝敗の法則 / The principle of victory discovered by science (open lecture in NSSU)
konakalab
1
310
データマイニング - グラフ埋め込み入門
trycycle
PRO
1
210
シャボン玉の虹から原子も地震も重力も見える! 〜 物理の目「干渉縞」のすごい力 〜
syotasasaki593876
1
120
俺たちは本当に分かり合えるのか? ~ PdMとスクラムチームの “ずれ” を科学する
bonotake
2
2.2k
Endel Tulvingとエピソード記憶
rmaruy
0
100
Non-Gaussian, nonlinear causal discovery with hidden variables and application
sshimizu2006
0
110
Kaggle: NeurIPS - Open Polymer Prediction 2025 コンペ 反省会
calpis10000
0
520
Bear-safety-running
akirun_run
0
130
Text-to-SQLの既存の評価指標を問い直す
gotalab555
1
200
機械学習 - 決定木からはじめる機械学習
trycycle
PRO
0
1.4k
Physical AIを支えるWeights & Biases
olachinkei
1
300
Featured
See All Featured
Building Adaptive Systems
keathley
44
3k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
35
2.4k
Game over? The fight for quality and originality in the time of robots
wayneb77
1
160
How to optimise 3,500 product descriptions for ecommerce in one day using ChatGPT
katarinadahlin
PRO
1
3.5k
AI: The stuff that nobody shows you
jnunemaker
PRO
6
590
GraphQLの誤解/rethinking-graphql
sonatard
75
12k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
49
3.4k
Bash Introduction
62gerente
615
210k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
52
5.9k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
231
23k
Digital Ethics as a Driver of Design Innovation
axbom
PRO
1
270
The Spectacular Lies of Maps
axbom
PRO
1
710
Transcript
2025/11/22 hashimoto-kei ॳΊͯͷ LT ձ Vol. 17
ࣗݾհ
໊લɿhashimoto-kei
None
ग़ɿԬ
झຯɿαφ, Podcast
͖ͳຊɿNand2Tetris
None
ࠓͷςʔϚ
Λ࣋ͬͯΔ͜ͱ
🔥
͘͠Έ.math
None
None
ָ͠Έํ
ϓϩάϥϛϯά
ڝϓϩ ⏱
ݴޠॲཧ ⚙
ֶ
डݧֶ ⏱
ֶͷΈ ⚙
ڝϓϩ ⏱ ݴޠॲཧ ⚙
डݧֶ ⏱ ֶͷΈ ⚙
डݧֶ ⏱ ެཧओٛ ⚙
डݧֶ ⏱ ެཧओٛ ⚙ 👉
༡ΜͰΈΔ
🥳
ಉҰࢹ
None
🤔
2 ͭཁΔʁ
1 ͭͰेʂ
None
্ূ໌ࡁΈͱ͢Δ
্͔ΒԼΛಋ͘
None
Լͷࣜͷࠨล
্ͷࣜΛͬͯల։
ܭࢉ͢ΔͱɺԼͷࣜͷӈลʹͳΔ
🎉
ެཧओٛ
None
🤔
͜ΕͲ͔͜Β ग़͖ͯͨͷʁ
ެཧ
ެཧͱʁ
ྫ͑
ྗֶͷݪཧ
⚙
׳ੑͷ๏ଇ
ӡಈํఔࣜ
࡞༻ɾ࡞༻ͷ๏ଇ
3 ͚ͭͩ
͜ͷ 3 ͭΛͬͯ ྗֶͷཧΛ࡞Δ
ྫ͑
ΤωϧΪʔอଘଇ
ӡಈྔอଘଇ
͜ͷ 2 ͭ ྗֶͷݪཧ͔Βಋ͔ΕΔ
1. ׳ੑͷ๏ଇ 2. ӡಈํఔࣜ 3. ࡞༻ɾ࡞༻ͷ๏ଇ 4. ΤωϧΪʔอଘଇ 5. ӡಈྔอଘଇ
6. etc…
1. ׳ੑͷ๏ଇ 2. ӡಈํఔࣜ 3. ࡞༻ɾ࡞༻ͷ๏ଇ 4. ΤωϧΪʔอଘଇ 5. ӡಈྔอଘଇ
6. etc… ݪཧ 3 ͚ͭͩ
⚙
ߴߍֶʹ ͍͔ͭ͘ެཧ͕ଘࡏ͢Δ
ྫ͑
݁߹๏ଇ ʢ࣮ͷʹؔ͢Δʣ
None
Ͳ͔͜Βͯ͠ OK
͠ࢉͷ 23 + 1 + 9999
͠ࢉͷ 23 + 1 + 9999 ͔ͬͪ͜Βઌʹܭࢉͯ͠ OK
ަ๏ଇ ʢ࣮ͷੵʹؔ͢Δʣ
None
ֻ͚ࢉೖΕସ͑ͯ OK
ֻ͚ࢉͷ 4 * 5 = 5 *4 = 20
ֻ͚ࢉͷ 4 * 5 = 5 *4 = 20 ೖΕସ͑ͯಉ͑͡
࣮ͷ๏ଇ
None
ࠨ͔Βͷ๏ଇ
ӈ͔Βͷ๏ଇ
1. ݁߹๏ଇʢ࣮ͷʣ 2. ަ๏ଇʢ࣮ͷੵʣ 3. ๏ଇʢࠨ/ӈ͔Βͷʣ
͜ͷ 3 ͭͷެཧΛͬͯ ઌ΄ͲͷࣜΛূ໌͢Δ
None
None
2 ͷఆٛ
ࠨ͔Βͷ๏ଇ
ӈ͔Βͷ๏ଇ
ʹؔ͢Δ݁߹๏ଇ
ੵʹؔ͢Δަ๏ଇ
None
🎉
نଇੑ
ൺྻͷ
None
ެࣜ
None
ؙ҉ه...?
😭
☝
☝
☝
ఆٛࣜͰे
ఆٛࣜͷ྆ลΛ r ഒͨ͠ͷΛλςʹฒΔ
None
1 ͭӈʹζϥͯ͠ॻ͘ͷ͕ϙΠϯτʂ
ลʑΛҾ͘ͱ…
͕͜͜ফ͑Δʂ
None
݅ΛՃ
None
྆ลΛ 1 -r ͰׂΔͱ…
None
🎉
ҰൠԽ
Ҽղͷެࣜ
None
ؙ҉ه...?
😭
☝
☝
☝
ҰൠԽͰ͖Δ
None
ઌ΄ͲͷެࣜΛ ͬͯূ໌ͯ͠ΈΔ
࠶ܝ
None
None
͜ͷͱ͖ɺ ࣍ͷެ͕ࣜΓཱͭ
None
ఆٛࣜͱެ͔ࣜΒ ͕࣍Γཱͭ
None
྆ลʹ 1 - r Λֻ͚Δͱ…
None
r = 1 ͷͱ͖ Γཱͭ͜ͱʹҙʂ
͜͜Ͱ
None
Λೖͯ͠
྆ลʹ a^n Λֻ͚Δͱ…
None
a = 0 ͷͱ͖ Γཱͭ͜ͱʹҙʂ
🎉
ࢹ֮Խ
ճసߦྻ
None
ؙ҉ه...?
😭
☝
☝
☝
ਤͰे 1
(1, 0) ͱ (0, 1) Λ θ ͚ͩճస 1
1 1
ࡾ֯ؔͷఆ͔ٛΒ ͕࣍Γཱͭ 1
None
·ͱΊͯॻ͘ͱ
None
Α͘ݟΔͱ୯Ґߦྻʹͳ͍ͬͯΔ
🎉
ࢹ֮Խ
ࡾ֯ؔͷՃ๏ఆཧ
None
ؙ҉ه...?
😭
☝
☝
☝
ਤͰे
1 1
ճసߦྻʹ͍ͭͯ ࣍ͷ͕ࣜΓཱͭ
None
β ͚ͩճసͤͯ͞ɺ͞Βʹ α ͚ͩճస Ұؾʹ α + β ͚ͩճస
࠶ܝ
None
͜ΕΛ͏ͱɺ ࣍ͷ͕ࣜΓཱͭ
None
͜͜Λܭࢉ͢Εɺsin(α + β) = sin α cos β + cos
α sin β ͕ಘΒΕΔ
͜͜Λܭࢉ͢Εɺcos(α + β) = cos α cos β - sin
α sin β ͕ಘΒΕΔ
🎉
End … ?
͍ΖΜͳָ͠Έํ
֮͑Δ͚ͩਏ͍😭
ߟ͑Δͷָ͍͠🥳
͘͠Έ.math
͓ʔ͍ɺүɺ ֶΖ͏ͥʂ⚾
⚙ ⚾
Thank you for listening!