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1、CARGREDERGETHDSFRUASETSV.DrakopoulosDepartmentofnformaticsandTelecommunications,TheoreticalnformaticsUniversityofAthens,anepistimioupolis15784,AthensGreecevasilios@di.uoa.grhttp://cgi.di.uoa.gr/~vasiliosABSTRACTSequentialrenderingmethodsforthegraphicalrepresentati
2、onofuliasetsarecompared.Twogroupsofmethodsarepresented.ntherst,theattractoroftheuliasetisrenderedand,inthesecond,thecomplementoftheattractorisrendered.Examplesofimagesobtainedusingthesemethodsarealsogiven.eywords:Attractor,uliaset,renderingmethods1TRDUCTk=1,ziscalleda
3、xedpointofp.aturally,at-ctractingmeansthatpointsznearawillgenerate0orbitsnefascinatingaspectoffractalsisthebeautyz7!z7!z7!z:::oftheirgraphicalrepresentation.Thispaperis0123devotedtoadiscussionofvariousfractalaspectsz=p(z),k=0;1;:::,whichapproacha.Byk+1ckinvolvedinthepolynomialp:
4、C!Cwithccollectingallsuchpointsoneobtainsthebasinofattractionofanattractingxedpointa2p(z)=z+c;c2C:(1)ckA(a)=fz2C:limp(z)=ag:(2)cck!1Thedynamicsofpisanenormouslyrichfoun-ctainoffractalstructures.Althoughthefractaltisobviousthat1isanattractingxedpointsetsgeneratedfromtheabove-men
5、tionedtrans-ofp.TheboundaryofA(1)isdenotedbyccformationhavebeendiscussedextensivelyinthe@A(1)andiscalledtheuliasetofp.Wealsoccliterature,asfarasweknow,nopreviouslypub-usethesymbol=@A(1).therthanA(1)ccclishedworkexiststhatcomprisesthebestknownand,alsotobeconsideredisathirdobjec
6、tcsequentialvisualisationmethodsandwhosescopeisthecomparisonoftheirperformances.norder=CnA(1)cctopresentthesemethods,wemustrstintroducek=fz2C:p(z)staysboundedforallkgcsomeusefulterminology.sometimescalledthelled-inuliaset.bvi-Aperiodicorbitorcycleisasetofk2distinctously,weh
7、avethatpointsfa;:::;agsuchthat1k@==@A(1);cccp(a)=a;:::;p(a)=a;p(a)=a;c12ck 1kck1i.e.,separatescompetitionbetweenorbitsbe-cso,infact,foreachj=1;2;:::;k,z=aisaingattractedto1andorbitsremainingboundedjkkk 1solutionofp(z)=z,wherep(z)=p(p(z)).ask!1.cccckHence,apointaisperiodic,ifp(a
8、)=aforcsomek>0;itisrepelling,indi