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Metoda coardelor
1.
TTeemmaa:: MMeettooddaa CCooaarrddeelloorr
AA eeffeeccttuuaatt:: BBuubbuucceeaa MMaarriiaa,, ccll.. 1122 AA PPrrooffeessoorr:: JJoossuu LLaarriissaa
2.
MMeettooddaa ccooaarrddeelloorr ((ssaauu
mmeettooddaa ffaallsseeii ppoozziittiiii,,)) eessttee oo mmeettooddăă ddee ddeetteerrmmiinnaarree aa rrăăddăăcciinniiii uunneeii ffuunnccttiiii ppee uunn iinntteerrvvaall..
3.
MMeettooddaa eessttee uuttiilliizzaattăă
ppeennttrruu ggăăssiirreeaa rrăăddăăcciinniiii aapprrooxxiimmaattiivvee aa eeccuuaaţţiieeii ff((xx))==00 iizzoollaattee îînnttrr--uunn iinntteerrvvaall aa,, bb îînn ccaazzuull îînn ccaarree ff((aa))**ff((bb))<<00 ccuu aapprrooxxiimmaarreeaa pprreessttaabbiilliittăă..
4.
Metoda ccoonnssttăă îînn
pprroodduucceerreeaa uunnuuii ssiirr ddeessccrreessccăăttoorr ddee iinntteerrvvaallee [[aakk,, bbkk]] ccaarree ccoonnttiinn rrăăddăăcciinnaa ffuunnccttiieeii ff.. LLaa ppaassuull kk,, eessttee ccaallccuullaatt nnuummăărruull
5.
cckk eessttee aabbsscciissaa
iinntteerrsseeccttiieeii ddrreepptteeii ccaarree ttrreeccee pprriinn ppuunncctteellee aall lliinniieeii pprriinn ((aakk,, ff((aakk)))) șșii ((bbkk,, ff((bbkk)))) ccuu aaxxaa,, aabbsscciisseelloorr.. DDaaccăă ff((aakk)) ssii ff((cckk)) aauu aacceellaassii sseemmnn,, aattuunnccii ppuunneemm aakk++11 == cckk ssii bbkk++11 == bbkk;; aallttffeell,, ppuunneemm aakk++11 == aakk ssii bbkk++11 == cckk.. AAcceesstt pprroocceess ssee rreeppeettăă ppâânnăă ccâânndd ssee aajjuunnggee llaa oo vvaallooaarree aa ffuunnccttiieeii ssuuffiicciieenntt ddee aapprrooaappee ddee zzeerroo..
6.
Pentru a verifica
ccoorreeccttiittuuddiinneeaa aallggoorriittmmuulluuii,, ccoonnssiiddeerrăămm nnuummeerreellee rreeaallee aa șșii bb.. CCoonnssttrruuiimm ddrreeaappttaa ccaarree ttrreeccee pprriinn ppuunncctteellee ((aa,, ff((aa)))) șșii ((bb,, ff((bb)))),, ccaa șșii îînn ccoonnttrraa ffiigguurraa aallăăttuurraattăă.. AAcceeaassttăă ddrreeaappttăă eessttee oo ccooaarrddăă aa ggrraaffiiccuulluuii ffuunnccttiieeii ff.. EEccuuaațțiiaa aacceesstteeii ddrreeppttee ssee ddeetteerrmmiinnăă ffoolloossiinndd ffoorrmmuullaa eeccuuaațțiieeii ddrreepptteeii ccaarree ttrreeccee pprriinnttrr--uunn ppuunncctt ssii aarree oo ppaannttăă ddaattăă::
7.
VVaa mmuullttuummeesscc ppeennttrruu
aatteennttiiee!!!!!!
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