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
hashimoto-kei
November 22, 2025
Science
250
1
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
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
110
Offline Meetup | Fukuoka Rubyist Kaigi 05 Day0
hashimoto_kei
0
100
AkarengaLT vol.41
hashimoto_kei
1
150
AkarengaLT vol.40
hashimoto_kei
0
120
AkarengaLT vol.38
hashimoto_kei
1
290
AkarengaLT vol.37
hashimoto_kei
0
150
AkarengaLT vol.36
hashimoto_kei
0
130
AkarengaLT vol.35
hashimoto_kei
0
220
Boast Code Party | RubyKaigi 2025 After Event
hashimoto_kei
2
400
Other Decks in Science
See All in Science
生成AIと司法書士の未来.pdf
tagtag
PRO
0
140
不動産業界における業界特化のデータ整備とAI活用 ─Vertical DataとVertical AI─
estie
1
810
水耕栽培を始める前に知っておきたい植物の科学
grow_design_lab
0
280
ssmonline #51 ヤマサキ春のサメ祭り 2026 / ssmjp Yamasaki Spring JAWS Festival 2026
naospon
1
100
医療 LLM ベンチマークの現在地:多面的評価 と日本ローカライズ
analokmaus
1
600
AI bij literatuuronderzoek in de wetenschap
voginip
0
220
Inside the Mind of an LLM
baggiponte
0
200
Snowflake HCLS Meet Upヘルスケアユーザー会紹介
ktatsuya
0
110
SpatialRDDパッケージによる空間回帰不連続デザイン
saltcooky12
0
270
HDC tutorial
michielstock
2
750
東北地方における過去20年間の降水量の変化
naokimuroki
1
350
TypeScript で WebAssembly を用いた 型安全なプラグイン設計
nagano
2
570
Featured
See All Featured
Digital Projects Gone Horribly Wrong (And the UX Pros Who Still Save the Day) - Dean Schuster
uxyall
1
2.1k
A Modern Web Designer's Workflow
chriscoyier
698
190k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
49
3.5k
技術選定の審美眼(2025年版) / Understanding the Spiral of Technologies 2025 edition
twada
PRO
118
120k
How to Grow Your eCommerce with AI & Automation
katarinadahlin
PRO
1
230
Six Lessons from altMBA
skipperchong
29
4.3k
A designer walks into a library…
pauljervisheath
211
24k
HTML-Aware ERB: The Path to Reactive Rendering @ RubyCon 2026, Rimini, Italy
marcoroth
3
360
Typedesign – Prime Four
hannesfritz
42
3.1k
Building Applications with DynamoDB
mza
96
7.1k
The Illustrated Children's Guide to Kubernetes
chrisshort
51
53k
Stewardship and Sustainability of Urban and Community Forests
pwiseman
0
370
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!