Izicelo esebenzayo kunye nokufumana isizalo eguqulweyo ngokubaxwa

Matrix - itafile, nto leyo izaliswe kukho iseti ethile kwamanani ngendlela ethile. Eli gama livele ebalaseleyo Isazinzulu British theoretical component James uSylvester. Nguye ngomnye wabaseki thiyori isicelo ezi zinto zezibalo.

Ukuza kuthi ga ngoku, baye ngokubanzi kusetyenziswa ngexesha izibalo ezahlukahlukeneyo, nto leyo asekelwe indlela ezifana, ngokomzekelo, ukufumana isizalo uguqulo emasebeni ezahlukeneyo zezinto ezenziwa luluntu. Le ndlela isekelwe phezu ukucaza engaziwayo parameters iinkqubo ezahlukeneyo ze zibalo kwaye isoloko isetyenziswa ngexesha izibalo kwezoqoqosho.

Kukho amatyala abalandelayo abkhetekileyo la macandelo zemathematika: abancinane, kukho ikholam, zero, isikwere, oxwesileyo, single. Elibhalwe ibandakanya kumqolo omnye kuphela lweziqalelo, kwaye kukho ikholam - of a njengomhalthi owodwa lwamanani. Zero - zonke izinto zayo ilingana no 0. Eli zezibalo ngenani element lwemihlathi lilingane inani lemiqolo. Ngenxa yoko, kweli idiagonal, ibekwe kwi iimpawu oxwesileyo ezahlukeneyo ukusuka "0", kwaye abanye kumele kube ukulingana "0". Identity - yinto zenyathi isizalo oxwesileyo. Kuye kuphela "1" ukwakweli idiagonal main.

Imizekelo matrices:

kuyo: A _k - ligama, ibe _IJ - izinto,

(A) ukuze 2-th;

(B) - kunobumba omncinane;

(A) ukuze -3-th;

(G) - Umzekelo 2-th umyalelo unit itafile;

Kwakhona, kukho matrix Ngokufanayo, inkcazelo leyo ilandelayo. Xa liphindaphindwe yokuqala etafileni iyunithi ingxelo ifunyenwe. Iintlobo ngeentlobo iindlela ukuba siyakuvumela ukufumana isizalo nguqu. Elula kwezi isekelwe kwenkcazo onefuthe kunye cofactors (nazo ngamanye amaxesha ibizwa ngokuba onefuthe).

Le onefuthe ngayo isizalo ukubonakaliswa _{11 22} -a ₁₂ a _21, oko kuboniswa ngolu hlobo lulandelayo: | A |. Le ndlela yokubala ngasentla isebenziseka itafile ngokwesiko yesibini. Nayiphi Ifomula njengabamisi matrices of kweliphezulu. imeko baphiwe ubukho onefuthe - itafile kufuneka square. Ukuziqhelisa, lwesi sakhi le thiyori amaninzi asetyenziswayo njengokukhetha matrix nguqu.

Icandelo lesibini ezibalulekileyo ezinokusetyenziswa ukufumana amaxabiso leziqalelo sawo cofactor. Oku ibalwa wokubala: A _IJ = (- 1) ^{i + j} * M _IJ, apho M - kuba ncinane. Okubalulekileyo - yinto onefuthe eyongezelelweyo, leyo inokufunyanwa yi ngokwengqiqo susa umqolo kunye umhlathi ifumaneka apho into esebenzayo. Umzekelo, ukuba itafile, ngokwesiko yesibini, nto leyo kubonisiwe ngaphambili kwitekisi, kwisisele ₁₁ uya kongeza element aljibra ₂₂ a.

Ukufumana i matrix eguqulweyo ngokubaxwa i lwenziwa ngokwamanqanaba-3. Inqanaba lokuqala ichazwa njengeyo-. Xa inyathelo elilandelayo - zonke cofactors, ezo abhalwe ngoko ngokungqinelana kunye nezalathiso zayo, yaye Icacili phandle ukuba cofactors itafile. Ngelo isigaba sokugqibela matrix eguqulweyo ngokubaxwa i elifunyenwe ngobekuphandwa esiphela phinda nganye ezongeziweyo aljibra onefuthe.

Isizalo ezininzi ezisetyenziswayo esetyenziswa izibalo kwezoqoqosho. Ngoncedo lwabo, unako lula yaye ngokukhawuleza ukusebenza ulwazi oluninzi. Kulo mzekelo, isiphumo isiphelo iya kwenziwa ngendlela elula ukuya kwimbono kwefom.

Enye indawo zezinto ezenziwa luluntu, apho isizalo lukwafumanise uluncedo olukhulu - eli Ukulinganisa 3D-imifanekiso. Ezi zixhobo kuhlanganiswa zibe upakisho mihla ngenxa ukuphunyezwa 3D-imifuziselo ze uvumele abayili bamajikazi ukuba ngokukhawuleza ngokuchanileyo ukwenza izibalo eziyimfuneko. Ummeli evelele iinkqubo hlobo Compass-3D.

Enye inkqubo, yona ethi inxulumanise izixhobo ukwenza izibalo ezinje, i-Microsoft Office, ingakumbi - iprogram yespredishithi Excel.