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
円と円の外接線の求め方
Search
Sho Iizuka
June 14, 2014
Programming
0
61
円と円の外接線の求め方
https://www.slideshare.net/kujira16/ss-35861169
Sho Iizuka
June 14, 2014
Tweet
Share
More Decks by Sho Iizuka
See All by Sho Iizuka
半年前の自分に教えたい systemd のハマりどころ
arosh
19
16k
Osaka.Stan#5 LT プログラミングコンテストのデータを分析した話
arosh
1
6.8k
簡潔データ構造輪講資料(順列)
arosh
1
8.1k
Pythonにおける日本語処理
arosh
1
2.1k
FM-index による全文検索
arosh
0
33
円と円の交点の求め方
arosh
0
42
Other Decks in Programming
See All in Programming
ペアプロ × 生成AI 現場での実践と課題について / generative-ai-in-pair-programming
codmoninc
2
20k
型で語るカタ
irof
0
350
“いい感じ“な定量評価を求めて - Four Keysとアウトカムの間の探求 -
nealle
2
11k
Rails Frontend Evolution: It Was a Setup All Along
skryukov
0
230
What's new in AppKit on macOS 26
1024jp
0
130
Agentic Coding: The Future of Software Development with Agents
mitsuhiko
0
120
VS Code Update for GitHub Copilot
74th
2
670
AI時代のソフトウェア開発を考える(2025/07版) / Agentic Software Engineering Findy 2025-07 Edition
twada
PRO
96
33k
코딩 에이전트 체크리스트: Claude Code ver.
nacyot
0
840
Startups on Rails in Past, Present and Future–Irina Nazarova, RailsConf 2025
irinanazarova
0
150
なぜ「共通化」を考え、失敗を繰り返すのか
rinchoku
1
660
AIと”コードの評価関数”を共有する / Share the "code evaluation function" with AI
euglena1215
1
170
Featured
See All Featured
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
48
2.9k
Designing Experiences People Love
moore
142
24k
The Art of Programming - Codeland 2020
erikaheidi
54
13k
Why Our Code Smells
bkeepers
PRO
336
57k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
656
60k
BBQ
matthewcrist
89
9.7k
Navigating Team Friction
lara
187
15k
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
44
2.4k
4 Signs Your Business is Dying
shpigford
184
22k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
130
19k
Measuring & Analyzing Core Web Vitals
bluesmoon
7
510
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
161
15k
Transcript
ԁͱԁͷ֎ઢ !TIPSB@LVKJSB
w *$1$ͷزԿϥΠϒϥϦղઆγϦʔζͦͷͰ͢ w ԁͱԁͷަʹҾ͖ଓ͖ɺԁͱԁͷ֎ઢͷٻΊํ Α͔͘Βͳ͔ͬͨͷͰɺࣗͷཧղͷͨΊʹ·ͱΊ ͓͖ͯ·͢ w ࢀߟʹͨ͠ϥΠϒϥϦ w L@PQFSBGBO͞Μ
ʢݱࡏͲ͜ͰμϯϩʔυͰ͖Δͷ͔ෆ໌ʣ w X ͞Μ
֎ઢ
ઢ
ଋࣄ Q Q S S $ $
֎ઢͷٻΊํ w SSͷ߹ͷํ w $ͷͱ$ͷΛ݁Ϳઢʢʹઢʣ͕ ઢQQͱฏߦʹͳΔͷͰɺSPUͳͲΛͬͯ ͕ΜΔʢ؆୯ͳͷͰৄ͍͠ղઆলུʣ w S㱠Sͷ߹ͷํ w
ຊͷ֎ઢͷަRΛٻΊ͔ͯΒUBOHFOU$1Ͱ $͓Αͼ$ͱͷΛٻΊΔ
S㱠Sͷ߹ R
S㱠Sͷ߹ R S S U E θ
ઢ U S ͔ΒͳΔ֯ࡾ֯ܗͱ ઢ U E S ͔ΒͳΔ֯ࡾ֯ܗʹ͓͍ͯ ֯ВΛڞ༗͍ͯ͠ΔͷͰTJOВ͕͘͠ͳΔ
r1 t = r2 t + d t = r1d r2 r1
RͷҐஔΛಘΔʹ QΛ࢝ͱͯ͠ɺQˠQͷ୯ҐϕΫτϧΛ ͞U͚ͩ৳ͤྑ͍ q = p1 + t · p1
p2 d = p1 + r1d r2 r1 · p1 p2 d = p1 (r2 r1 ) r2 r1 + r1 (p1 p2 ) r2 r1 = p1 r2 p2 r1 r2 r1
2R͕$ଆͰͳ͘$ଆʹ͋Δ߹ʁ "͏·͍͔͘ͳ͍Α͏ͳؾ͕͢Δ͕ɺ ಋग़ͯ͠ΈΔͱಉࣜ͡ͰQͷҐஔΛද͢͜ͱ͕Ͱ͖ Δ͜ͱ͕͔Δ
ઢͷٻΊํ w ർΕ͖ͯͨͷͰলུ͢Δ͕ɺ֓ཁҎԼͷͱ͓Γ w ઢͱઢQQͷަΛRͱ͠ɺQͱRͷڑΛUͱ͢Δ w ઢͱઢQQ͕ަΘ͍ͬͯΔ෦ʹ͓͍ͯɺର֯В ͕͍͠ʹTJOВ͕͍͜͠ͱ͔ΒSUS EU
w UΛܭࢉ͔ͯ͠ΒQˠQͷ୯ҐϕΫτϧΛ ͞U͚ͩ৳ͯ͠Rͷ࠲ඪΛಘΔ w Rͱ$ɺ͓ΑͼRͱ$ʹ͍ͭͯUBOHFOU$1Λܭࢉ͢Δ
ײ w ηϯλʔࢼݧྗ͕େࣄͩͱࢥ͍·ͨ͠ʢখฒײʣ w Ջ͕Ͱ͖ͨΒଓ͖Λ࡞Δ͔