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
1
160
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
Tweet
Share
More Decks by hashimoto-kei
See All by hashimoto-kei
AkarengaLT vol.40
hashimoto_kei
0
57
AkarengaLT vol.38
hashimoto_kei
1
200
AkarengaLT vol.37
hashimoto_kei
0
95
AkarengaLT vol.36
hashimoto_kei
0
79
AkarengaLT vol.35
hashimoto_kei
0
180
Boast Code Party | RubyKaigi 2025 After Event
hashimoto_kei
2
330
Other Decks in Science
See All in Science
データベース11: 正規化(1/2) - 望ましくない関係スキーマ
trycycle
PRO
0
1k
データベース03: 関係データモデル
trycycle
PRO
1
330
生成検索エンジン最適化に関する研究の紹介
ynakano
2
1.9k
蔵本モデルが解き明かす同期と相転移の秘密 〜拍手のリズムはなぜ揃うのか?〜
syotasasaki593876
1
180
Performance Evaluation and Ranking of Drivers in Multiple Motorsports Using Massey’s Method
konakalab
0
130
コミュニティサイエンスの実践@日本認知科学会2025
hayataka88
0
120
NDCG is NOT All I Need
statditto
2
2.7k
機械学習 - K-means & 階層的クラスタリング
trycycle
PRO
0
1.2k
[Paper Introduction] From Bytes to Ideas:Language Modeling with Autoregressive U-Nets
haruumiomoto
0
180
良書紹介04_生命科学の実験デザイン
bunnchinn3
0
110
My Little Monster
juzishuu
0
500
ド文系だった私が、 KaggleのNCAAコンペでソロ金取れるまで
wakamatsu_takumu
2
1.9k
Featured
See All Featured
The #1 spot is gone: here's how to win anyway
tamaranovitovic
2
900
Lightning Talk: Beautiful Slides for Beginners
inesmontani
PRO
1
430
The Web Performance Landscape in 2024 [PerfNow 2024]
tammyeverts
12
1k
Building a Scalable Design System with Sketch
lauravandoore
463
34k
Bridging the Design Gap: How Collaborative Modelling removes blockers to flow between stakeholders and teams @FastFlow conf
baasie
0
430
What's in a price? How to price your products and services
michaelherold
247
13k
How to audit for AI Accessibility on your Front & Back End
davetheseo
0
150
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
marktimemedia
31
2.7k
Building Flexible Design Systems
yeseniaperezcruz
330
40k
Making Projects Easy
brettharned
120
6.6k
Thoughts on Productivity
jonyablonski
74
5k
The Invisible Side of Design
smashingmag
302
51k
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!