Mathematics eyonwabisayo: Paper Ubungakanani

Nangoku, ngexesha lwetheknoloji yedijithali, ayikho umntu ongazange wambona isiqwenga sephepha. Sonke ekuye kwafuneka ukuba sijongane neefomathi zixhaphakileyo - A4. Abo zipeyintwe kwiphephandaba eludongeni yesikolo okanye wafunda ukuzoba kwi-Institute, wadibana ne-A3, A2 kunye A1. Abanini zimisele iirekhodi lephepha ngamanye amaxesha afumaneka kwi kwiipakethe kwenkcazelo ubungakanani iphepha elinye uyachazwa A6 okanye A7 format. Ukanti abanye baye beva ukuba ubukhulu iphepha zinganikezelwa ngendlela B no-C

Zama ukusebenzisa irula ukujonga ubungakanani kweemakhishithi yesakhiwo ephepheni le A4. Sifumanisa ukuba elingana nobude 297 mm kunye ububanzi ubuninzi - 210 mm. Yintoni umdla kukuba, la manani? Ukuba naluphi na uxwebhu cut elisezantsi lephepha kubini, umlinganiselo ubude macala ukusuka sheets ezintsha kuhlala ziyafana kwindawo eyayisakuba ephepheni elikhulu. Oko kukuthi, iphepha ubungakanani esincinane lufumaneka iphepha elikhulu kwiyantlukawano elula. Iphepha A4 - iphepha isiqingatha kwiphepha A3 kwakunye A5 - isiqingatha A4.

Ukugcina aspect ngokunciphisa ubukhulu Kulula kakhulu ukuba kuthotha imifanekiso, kunye neminye imisebenzi ezininzi naphina apho kusetyenziswa iphepha. Ngokomzekelo, kulula ukubala ubunzima mail, esazi ukuba indawo kwegqabi inkulu Serie A ulingana no isikwere 1 kwimitha. iphepha Printer onokuxinana 80 g / m. Ngenxa yoko, sheet A4 (njengoko 1/16 njengenxalenye sheet A0) ziya nobunzima 5 grams. Bala ubunzima emvulophini naye bakhokelwe ngasentla ingxabano, kuba dimensions nobukhulu bepepha B no C (esetyenziselwa iimvulophu) ukuthobela iintlobano efanayo naleyo ukuze A.

Nganye kwezi yeefomati esetyenziswa kwishishini yoshicilelo ye ukulungiselela injongo ethile. A8 - into encinane, A7 - neeleyibhile A6 - ubungakanani ngamazwe ngenxa postcards, A5 - amaphetshana kunye namaphetshana, A4 - amaxwebhu. Ubukhulu ubungakanani bephepha abantu abanjalo ukuba elinye icala sheet une inani elipheleleyo ngeesentimitha eziyi-. Oku kuluncedo kakhulu ekudaleni iimveliso kunye imifanekiso abayili kunye layout kulula ukwakha isakhiwo. Nokuba ngokwefomathi eveliswe zokundwendwela kunye namanye amaxwebhu asemthethweni kunye neefom, kwakunye iimvulophu zamafu. iphepha ertyisi, ukongeza ukwenziwa emvulophini soft isetyenziswa iifoto yoshicilelo.

Kukho nezinye yeefomati. Xa amazwe IsiNgesi abathetha, apho nangoku ugcinwe intshi inkqubo metric, sebenzisa «Ileta» ifomati, kwakunye «Legal» kunye «yethabloyidi enamakhasi». Ratio phakathi macala ngephepha elenziwe kumgaqo echazwe ngasentla, kodwa ubude bamacala okanye iphinda-i-intshi elipheleleyo. Xa ifomathi ubungakanani bephepha A + (aka RA) inkulu kancinane kunalowo A. Ngoko ke, ukuba iphepha le A4 +, umzekelo, ukuba kungenzeka ukwenza ezineenkcukacha ze A4. SRA unalo ngesakhiwo inkulu kancinane RA.

Kananjalo kubonakala ukuba ubukhulu bephepha standard khangela kakhulu nezamkelekileyo tsakisaka. Umlinganiselo bamacala ezimfutshane nezinde wetshati leyo kuphela enyanisweni. Oku kuxhomekeke olinganise "ratio yesilivere", ayikho ngokunjalo-eyaziwa ngokuba yi "kwicandelo yegolide", kodwa nayo yakhelwe phezu amanani ezingenangqondo. Xa intliziyo icandelo segolide (leyo, ngasendleleni, ifumaneka ubungakanani ncwadi), lo ke ingcambu ka ezintlanu. Silver isekelwe kwi ingcambu ka ezimbini. Kwaye aqhubeke yahlula iphepha ukuya Infinity, sikwazi ukudala ulandelelwano Fractal.