Shaandho of Eratosthenes in barnaamijyada

Xisaabta - Science, kuwaas oo u muuqday dhowr kun oo sano, oo si firfircoon loo isticmaalaa in Giriigii hore. Si kastaba ha ahaatee, saynisyahano badan, aragtiyaha, kuwaas oo ku noolaa waqti, sameeyey daahfurka, kaas oo noqday weyn oo cajiib ah, laakiin aqoonsiga dhabta ah in a dhowr boqol oo ka dib, markii technology loo ogol yahay in ay ogaadaan awood buuxda cilmi of xisaabta qadiimiga ah. Waxaa xusid mudan in xisaabaha oo dhan la sameeyey jireen waagii fog "in maanka" oo ku jira entry baaxad weyn oo ka mid ah xisaabaha ah. Mid ka mid ah khubarada ugu caansan Greek ahaa Eratosthenes, aan rasmi loo yaqaan awoowe labaad ee barnaamijyada. Iyada oo agaa of computer science ahaa xisaabinta uu, ee aragti iyo axioms waxaa inta badan beddelay "luqadaha" computer. In Arsenal ee xisaabta ahaayeen dhowr natiijooyinka xiiso leh, laakiin ugu badan wuxuu ahaa shaandheeyo shaandho of Eratosthenes inuu kaa caawiyo inaad si dhakhso ah u hesho tiro Ra'iisul xigaan bandhigay.

Qoraayaashii saynisyahano

In kasta oo xaqiiqda ah in dhammaan hawlaha khabiir ka dhacay gayiga Giriigii hore, ku dhashay ee hanad ka mid ah Africa ee BC qarnigii saddexaad. Wuxuu u tababaran cilmiga ee magaalo ee ugu waaweyn ee Greece, si joogto ah, halkaas oo uu joogay. macalimiinta waxay ahaayeen gabayaaga si fiican u yaqaan, faylosuufiinta, iyo naxwaha waqtiga. Thanks to horumarinta hoose-dhexe iyo ixtiraam ee goobada of theorist cajiib ah sida maskax martiqaaday post ee maktabadda ee Alexandria, halkaas oo uu u adeegi jireen, ilaa uu dhintay, abuurista xabbadood cajiib muusikada ee Zaman, iyo cilmi-baarista ee meelaha kala duwan, oo ay ku jiraan shaandheeyo shaandho of Eratosthenes. Aqoonyahan casriga ah - halyeeyga Archimedes - ka hadlay isaga oo kaliya in midabada sasabasho miidhan ah iyo xitaa ka go'an in uu si gooni ah shaqada.

guulaha

feature ugu weyn ee aqoonyahan qadiimiga ah loogu qiimeeyaa inuu miday ka mid ah meelaha bartay. Isla mar ahaantaana ku dhowaad dhammaan dhinacyada, ayaa wuxuu gaareen natiijooyin aad u fiican. Falsafadda, gabayo, xisaabta, xiddigaha, music, philology, juqraafi - waayo sida caalaminimada gaar ah in search for aqoon theorist Pentatl naaneesta ah by ururka la isboortiga ku wareegsan. Dabcan, ma uu weynaaday in mid ka mid ah meelaha ay ka baratay, laakiin mid kasta oo iyaga ka mid ah u soo baxay si loo gaaro natiijooyin wanaagsan. Tan waxaa lagu tilmaamay by jajabkii extant ee uu shaqada iyo cilmi-baarista. Inkastoo ay hooska qaar ka mid ah saffarro uu, saynisyahan ayaa kaalin weyn in ay taariikhda xisaabta, iyo shaandho of Eratosthenes la tiro ka mid ah degsiimooyinka kale si fiican u yaqaan on xaq u ahaa mid ka mid ah meel u daahfurtay joomateri iyo xisaabta caan ah.

History of magaca iyo meesha uu faahfaahin

Waqtiyadii hore, dhamaan diiwaanada, oo ay ku jiraan xisaabta dhigay on looxyadii wax gaar ah. Sidaa darteed, marka la xisaabayo xisaabta iyo dabeecadda aljabrada, gaar ahaan inta lagu jiro laga saaro tirada ee isku xigxiga ee, cilmi "saaray" qoraal on accessories ay. Ka dib oo dhan saxan shaqada sida xabbad maacuunta qoyska waxbarasho oo la odhan jiray - shaandho of Eratosthenes. wadadii uu furitaanka ahaayeen fikirrada hanad helo primes ee taxanahan dabiiciga ah. Operation socday dhowr bilood, waxa uu weli la natiijada kama dambaysta ah. In BC qarnigii saddexaad, waxa uu ahaa horumar degdeg ah a.

Waa maxay isku geynta ah?

Hab degdeg ah si aad u hesho oo dhan lambarada Ra'iisul oo isku xigta dabiiciga ah culimada xiiso tan Maqal time. Ka dib oo dhan, iyagu ma ay leeyihiin siiqo ay u adag iyo diyaarin si magaabo-random. Waqtigan xaadirka ah, khubaro inta badan fahamsan yahay oo wuxuu bartay sida loo sameeyo xisaabinta loo baahan yahay si deg deg ah. In this ay ka caawiyay by geynta fudud - shaandheeyo shaandho of Eratosthenes. hanad oo qaraami ah u ogaadeen in dhowr tallaabo:

• Qaado tirada dabiiciga ah ka mid ah in tiro kasta (N dheer generic) .Stoit xusay in dhowr tobankii ka hor unit la tixgeliyo dhowr Ra'iisul. Haddaba waxaa iska leh nooc ka mid ah oo gaar ah in uusan haysan qeexid adag.
• Dheeraad ah oo ku jiro tirtirka dhammaan lambarada loo qeybin laba.
• Markaasaa, ugu horreeyey waxa laga soo qaatay haray (kiiskan, xaafuun), oo ka horjoogsanaya in dhammaan tirooyinka dhici u galay.
• Xisaabinta sii ilaa tirada ugu danbeysay ee taxanaha.
• Tirada soo hadhay ku jiri doona tilmaamayaasha fudud oo keliya.

Doorashadan waxa waxaa muddo dheer loo kaliya wax ku ool ah, laakiin dhalashada khubaro computer ay awoodaan si ay u sameeyaan xisaabinta xigxig dheeraad ah oo adag. Si kastaba ha ahaatee, xitaa marka la teknoolajiyada cusub shaandho of Eratosthenes waa aragti xisaabeed muhiim ah.

luqadaha mashaariiceed ee xisaabta

Technology, kombiyuutarada, iyo sayniska kombiyuutarka ayaa loo ogol yahay xisaabta barashada aragtida aljabrada, gaadho marxaladda cusub ee horumarinta sayniska. Tallaabada ugu horreysa, iyadoo la isticmaalayo fursad gaar ah ay u leeyihiin in ay dadka dhexgalaan xisaabta ee loo yaqaan iyo waxbarashada joomateri ee barnaamijyada. Mid ka mid ah kuwa ugu caansan xilligan of Languages barashada Kombiyuutarka bilaabay, oo ay ku jiraan for xisaabinta shaandho geynta ee Eratosthenes, Pascal ah. Iyada oo taageero ka dhowr ilbiriqsi, waxaad ka heli kartaa lambarada Ra'iisul ee isku xigxiga ee tirooyinka caadiga ah, taas oo ay muddo dheer la heli karo ama loo xisaabiyaa by entries grand, qaadato waqti badan. Sidaas darteed, wax ku ool ah ayaa aasaas u ah dhismaha cusub ayaa helay version ah hagaagay ee ku daahfurtay qadiimiga ah iyo fursadaha jira xisaabaha dhow xad lahayn.

Isticmaal on Olombikada casriga ah ee Aqbaarta

tartamada lahayn ee ardayda maadooyinka kala duwan Currently mar kale helo caan. Laureates oo ku guuleysatay ah dhacdooyinkaan waxay u tag heerka ku xiga ee tababarka iyo ka heli kartaa rajada wanaagsan ee shaqada mustaqbalka, ay ku jiraan wax deeqo. Olombikada ee Aqbaarta waxaa ka mid ah caqabadaha ma aha oo kaliya, laakiin sidoo kale in la helo fikrado fiican u yaqaan sida sida lambarada Ra'iisul. Shaandho Eratosthenes sidaas loo isticmaalaa sida habka ugu hadda xisaabinta isku xigxigta, by iskudhafka axioms ee code barnaamijka. Inkastoo helitaanka Qarniyadii hore, aragtida this ka caawisaa in ay si dhakhso ah oo wax ku ool ah la qabsado xisaabin adag.