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introduce asymptotic notation
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Jihoon KIm
February 09, 2019
Programming
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12
introduce asymptotic notation
접근적 표기법에 대한 간략한 설명 :)
빅오, 세타오, 스몰오 등등
introduce asymptotic notation
Jihoon KIm
February 09, 2019
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Transcript
࠻য়, ࣁఋয়, झށয়, ࣁఋয় ١١... ӣള(@super-fishz)
࠻য়, ࣁఋয়, झށয়, ࣁఋয় ١١... asympto(c nota(on
࠻য়, ࣁఋয়, झށয়, ࣁఋয় ١١... asympto(c nota(on Ӕ ӝߨ
Ӕ ӝߨ • asympto)c nota)on - MIT Open course 1h
• যڃ ೣࣻ ૐо ন࢚ਸ ܲ ೣࣻ৬ ࠺Ү۽ അೞח ࣻۿҗ ೧ࢳ ߑߨ • ঌҊ્ܻ ࠂبܳ ױࣽച ೡٸب ࢎਊ (feat, wikipidia) • ী٘ޙ ۆ ইॿо ݅ٞ • 1877֙ী కযդ ةੌ ࣻ ইॿ
Ӕ ӝߨ • ઙܨ • small o • ޙ O
• ޙ য়ݫо(Ω) • ޙ ࣁఋ(Θ) • ࣗޙ য়ݫо(ω)
Ӕ ӝߨ
Ֆ ৌܽѾ݈
Ӕ ӝߨ Ѧ ৵ ঠӝೞחо?
Ӕ ӝߨ Ѧ ৵ ঠӝೞחо? ղо ૠ ೣࣻо ݅ఀ ਗਸ
ࣗݽೞח ঈೞӝਤ೧
Ӕ ӝߨ Ѧ ৵ ঠӝೞחо? ղо ૠ ೣࣻо ݅ఀ ਗਸ
ࣗݽೞח ঈೞӝਤ೧
ਗ
ਗ दр ਗ - प೯ױ҅ ࣻ ҕр ਗ - ӝর
ਤ ࣻ
Ӕ ӝߨ Ѧ ৵ ঠӝೞחо? ղо ૠ ೣࣻо ݅ఀ ਗਸ
ࣗݽೞח ঈೞӝਤ೧
Ӕ ӝߨ • ઙܨ • ࣗޙ o • ޙ O
• ޙ য়ݫо(Ω) • ࣗޙ য়ݫо(ω) • ޙ ࣁఋ(Θ)
Big O • Ӕ ࢚ೠ • n ࠙ ٸ, ୭ঈ
҃ܳ աఋն • ੑ۱߉ n ಿ ୭ঈ ҃ੌٸ • Big O ӝߨਵ۽ ӝೞחѱ ০ image referecne
Big Omega (Ω) • Ӕ ೞೠ • n ࠙ ٸ,
୭ࢶ ҃ܳ աఋն • ୭ࣗೠ ݅ఀ Ѧܽ. image referecne
Big Theta (Θ) • Ӕ ಣӐ • O৬ য়ݫо(Ω)
ಣӐੋ ч image referecne
झށ(ܻౣ) दܻૉ • o(ࣗޙ ঌ߳ o) • ࣗޙ য়ݫо(ω)
Ӕ ӝߨ
Ӕ ӝߨ
झށ(ܻౣ) दܻૉ • ࠻ दܻૉ৬ ࠺तೞ݅, ؊ ఋೞѱ ࠺Үೣ •
ఋೞѱ? • 2n दрࠂبܳ оח ೣࣻܳ... • O(n) <- true • O(n^2) <- true • o(n) <- false • o(n^2) <- true
೦࢚ ০о?
೦࢚ ০о? Ӓۧח ঋ
೦࢚ ০о? -> ũũ • ௱ࣗ • O(n^2) • Θ(nlogn)
• ࢚ࣻ೦ ই ҃
Ֆ
Reference wiki/Analysisofalgorithms wiki/Computa4onalcomplexitytheory mit.edu/courses/electrical-engineering-and-computer-science/ ֢ی࢝ Ӓې ೠ ೠӖ ࢸݺ
h;p:/ /vaert.4story.com/117 h;ps:/ /sdolnote.4story.com/entry/BigOLi;leo ঌҊ્ܻ-cয-1-2-ঌҊ્ܻ-ಣо৬-Ӕ-ӝ