Hurwitz chokuratidza. Kugadzikana nzira metsä, Hurwitz Savage

Nyaya paine pfungwa dzakadai Hurwitz chokuratidza, Savage uye metsä. Rinonyanya nezuva rokutanga. Hurwitz chokuratidza chinorondedzerwa zvizere zvose kubva algebraic nemaonero uye kubva achitandadza sarudzo pasi chokwadi.

Zvinofanira kutanga tsanangudzo yokuti kuenderera. Rinoreva unyanzvi wegadziriro kudzokera zvakanyatsoenzana pakazopera nenyonganyonga, izvo yakatyora aivapo nechiyero kwokutanga.

Zvinofanira kucherechedzwa kuti nemuvengi waro - kusagadzikana gadziriro - hwabviswa ichibva ayo zvakanyatsoenzana ehurumende (oscillates rwakapoteredza) pamwe kudzoka amplitude.

Kuenderera nzira: tsananguro, mhando

Wakaisa ichi mitemo anotigonesa kuti kutonga huripo zviratidzo mamirire mukana wokuti vanhu vanga pasina kutsvaga chisarudzo chake. Uye chechipiri, akavapindurawo, kunopa mukana kuzotonga kuenderera imwe gadziriro.

Kazhinji, vari:

• Algebraic (gadziriro zvimwe unhu mukana wokuti vanhu vanga algebraic mashoko uchishandisa anokosha mitemo izvo zvaizobatsira kutsiga ACS);
• kakawanda (chinhu kudzidza - kakawanda unhu).

Hurwitz Kugadzikana chokuratidza kubva algebraic nemaonero

Ivo nyasha munhu algebraic chokuratidza, zvichiratidza kuti kufunga imwe chakanangana mukana wokuti vanhu vanga vari muchimiro mureza fomu:

A (p) = aᵥpᵛ + aᵥ₋₁pᵛ¯¹ + ... + a₁p + a₀ = 0.

Kuburikidza coefficients ayo chizvaro akaumba Hurwitz.

Rule muunganidzwa Hurwitz chizvaro

Ari pasi dzaizotungamirira kuti akanyorwa kubva coefficients zvose chaienzanirana maitiro mukana wokuti vanhu vanga kubva aᵥ₋₁ kusvika a0. All mbiru pazasi huru diagonal coefficients kunoratidza kuwedzera inosiyana opareta S., ipapo kumusoro - kudzikira. Zvisipo vari kutsiviwa zeros.

Zvinonzi vaidavira kuti hurongwa akatsiga apo vose diagonal yevana vaiona zvakanaka chizvaro. Kana mukuru determinant akaenzana razero, ipapo tinogona kutaura kumuwana pamuganhu kudzikama, uye aᵥ = 0. Kana zvaidiwa nevamwe ezvinhu gadziriro iri mubvunzo riri kumuganhu idzva aperiodic pakusimba (Penultimate Minor akaenzana razero). Kana yakanaka yevana asara - kare panguva kumuganhu vibrational pakusimba.

Zvisarudzo pasi chokwadi: metsä bvunzo, Hurwitz Savage

Ndivo nzira dzekuziva kuti kusarudza zvakakodzera zvikuru nzira zvakasiyana. Chokuratidza Savage (Hurwitz, metsä) rinoshandisirwa mumamiriro ezvinhu apo pane Undefined hunhu priori fungidziro kuti inotaura. Dzavo hwaro - the kuongorora ngozi chizvaro kana Mubayiro chizvaro. Kana zvausingazivi kuparadzirwa yemberi inoti zviri fungidziro zvose iripo mashoko ndeyevanyori ndandanda zvayo nzira.

Saka, tinofanira kutanga pamwe maximin chokuratidza metsä. Iye chokuratidza zvokuora kusava netariro (kungwarira mucherechedzi). chokuratidza Izvi zvinogona kuumbwa uye vakachena uye vakavhengana nzira.

Yakasvika zita rayo inobva zvekungofungira pamusoro Extras kuti zvisikwa zvinogona kuona hurumende iri kuwana kukosha kuenzaniswa rakadzika ukoshi.

chokuratidza Izvi akafanana kune tariro, iro rinoshandiswa kosi kugadzirisa chizvaro mitambo, kazhinji wakachena nzira. Saka, kutanga sarudza kubva mutsetse mumwe shoma kukosha maatomu akafanana. Zano mutongi akabudiswa ipapo, izvo rinoenderana kunonyanyisa chinhu pakati kare yasarudzwa zvishoma.

Akasarudzwa chokuratidza vaiona zvokusarudza pasina ngozi, sezvo mutongi anotarisana hapana kuipa mugumisiro pane seunoshandira ane chiero.

Saka, zvakakodzera zvikuru, maererano chokuratidza kuti metsä, vakaziva mambure nzira, sezvazvakaita mune akaipisisa ezvinhu, dzinovimbisa chikuru shoma Mubayiro.

Uyezve, zvinokosha kufunga chokuratidza kuti Savage. Pano kusarudza wa1 anowanika zvinogadzirisa iri tsika, chiwanzo kurega panguva, izvo zvichaguma usingashandi kukanganisa kana kusarudza raizongova zvakaipa.

Maererano nenheyo iyi, chero mhinduro kunoratidzwa imwe yakawanda zvimwe nezvinhu yomuka ari kosi kwayo, kana tichienzanisa zvakanakisisa zvinowanikwa paImba mamiriro hwezvisikwa. Zviri pachena kuti chisarudzo chakarurama anogona chisingakonzeri yokuwedzera nezvinhu, ndokusaka mutengo wavo kn. Saka, sezvo vakawanda zvakakodzera nzira iri wokurera, kuwanda kurasikirwa iri shoma akaipisisa kuisa ezvinhu.

Chokuratidza netariro-yekutarisira

Saka siyana anonzi Hurwitz chokuratidza. The kusarudzwa kwacho zvinogadzirisa, kuti kuyera zvinhu panzvimbo mwero maviri vanoomerera Yaunoti zvenguva chinzvimbo, izvo anofunga mukana zvose zvakanaka uye kuipa nyaya maitiro zvakasikwa.

Izvi zvairatidza kuti nzwisisa Hurwitz. Maererano naye, chero mhinduro vanofanira hwokugadza Linear ibatanidzo Maminitsi naMax, ipapo kusarudza nzira zvinoenderana soro kukosha kwavo.

Kana takarurama kushanda chokuratidza ichi?

Hurwitz chokuratidza kushandisa advantageously mumamiriro ezvinhu dzinoratidzwa anotevera zvinhu:

1. Pane chikonzero kufungisisa rakaipisisa kuzvipedza.
2. Kusava nezivo pamusoro fungidziro pamusoro States zvakasikwa.
3. Nevamwe ngozi.
4. Chinozoiswa pedyo zvakakwana vashomanana mhinduro.

mhedziso

Pakupedzisira zvinokosha kutaura kuti munyaya vaionekwa nzira Hurwitz, Savage uye metsä. Hurwitz chokuratidza anorondedzerwa zvakadzama pamwe nemaonero akasiyana.