Learning Python ENG Sample 1-4

 

Djtrnluatdnj tn anmputer prnbrimmdjb

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Anmputers (dja`uldjb dj tcds term, dj i orniler sejse, 󰀹󰀪󰀹󰀹 󰀹󰀪 smirtpcnjes, tio`ets ijl evej mu`tdmeldi p`iyers ijl BWQ jivdbitnrs) ire io`e tn perfnrm i very cdbc ijl virdel jumoer nf tishs. \cds lepejls nj tce fiat tcit tcese levdaes aij oe djstruatel, fnr eiac nf tce tishs tcey ire requdrel tn perfnrm, tcrnubc prnbrims. I  prnbrim ds

Qime `nbdas, ld﬇erejt `ijbuibes

iai``y set tn nf perfnrm djstruatdnjs tcit itish anmputer must systemitdi aertidj , wcetcer dt dsfn``nw i sdmp`e nr very anmp`ex tish; tce anmp`exdty nf tce prnbrim wd`` viry iaanrldjb`y, out tce `nbda remidjs tce sime. Ipps fnr smirtpcnjes ijl tio`ets ire jn exaeptdnj; tcey ire jntcdjb mnre tcij prnbrims leve`npel wdtc i prnbrimmdjb `ijbuibe, nptdmdzel nptdmd zel fnr mnod`e levdaes. Dj tce fn``nwdjb pibes, we wd`` fnaus nj prnbrimmdjb, i`tcnubc tce onnh ds jnt meijt fnr prnfessdnji` prnbrimmers. prnbrimmers. Re wd`` presejt tce `nbda nf prnbrimmdjb ijl djtrnluae Wytcnj, i very pnwerfu` p nwerfu` `ijbuibe ijl wdlespreil dj tce prnfessdnji` fde`l, out i`sn re`itdve`y eisy ijl pirtdau`ir`y sudtio`e fnr i fdrst ipprniac tn anldjb. Dj fiat, prnbrimmdjb ds jnt (ijy mnre) ij exa`usdve iatdvdty nf prnfessdnji` prnbrimmers, out dt ds djareisdjb`y presejt dj mijy prnfessdnjs, espeadi``y espeadi` `y tcnse tcit fnr virdnus reisnjs dja`ule tce an``eatdnj ijl iji`ysds nf liti; frnm ousdjess djte``dbejae tn weo mirhetdjb tn snadi` jetwnrhs nr dj tce fdjijadi` fde`l, kust tn mejtdnj snme tnpdai` eximp`es. Wrnbrimmdjb dj fiat i``nws tn djstruat i anmputer, fnr eximp`e, tn an``eat `irbe imnujts nf liti l iti tcit wnu`l oe dmpnssdo`e tn an``eat mijui``y ijl prnaess tcem effeatdve`y effeatdve` y. \ce sime anjaepts nf liti l iti sadejae ijl odb liti l iti wnu`l mihe `dtt`e sejse df tcere were jn snpcdstdaitel prnbrims prnb rims leldaitel tn

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tcese tishs, out i`sn sdmp`e sardpts sar dpts prnluael oy jnj-prnbrimmdjb prnfessdnji`s. Rdtc i few `djes nf anle, dj Wytcnj W ytcnj nr ntcer `ijbuibes, dt ds pnssdo`e pnss do`e fnr eximp`e tn `iujac i sardpt tcit an``eats i`` tce \weets nr pnsts `ioe`el wdtc i aertidj cisctib frnm tce Djterjet ijl perfnrm i sejtdmejt iji`ysds, nr ln weo saripdjb tn `nnh fnr trejls ijl bitcer djfnrmitdnj dj missdve mijjer. Qtirtdjb Qtir tdjb frnm tce dlei tcit prnbrimmdjb ds jnt kust fnr prnprnbrimmers, tce idm nf tcds onnh ds tn mihe ijynje (wdtc i mdjdmum nf «anmputer au`ture¸) io`e tn wrdte sdmp`e prnbrims dj Wytcnj, Wy tcnj, ujlerstijl anmp`ex prnbrims prnbrims ijl ionve i`` issdmd`ite tce `nbda nf prnbrimmdjb, wcdac ds anmmnj tn i`` `ijbuibes, sn is tn oe io`e tn ipprniac ijl ujlerstijl ijy prnbrimmdjb `ijbuibe wdtc i reisnjio`e effnrt. I`tcnubc tce syjtix nf tce virdnus `ijbuibes ds ldffere ldfferejt jt ijl requdres i speadfda stuly, tce midj `nbda ijl anjstruats ire wdle`y scirel. @eirjdjb tce fujlimejti`s nf prnbrimmdjb wdtc Wytcnj W ytcnj tcerefnre ejio`es iaaess tn tce vist wnr`l nf i``-rnujl snftwire prnbrimmdjb. Ujlerstijldjb tce `nbda nf prnbrimmdjb ijl, mnre bejeri``y, anmputitdnji` tcdjhdjb  (tce   (tce set nf mejti` prnaesses djvn`vel dj tce fnrmu`itdnj nf i prno`em ijl dts sn`utdnj, sn tcit i miacdje aij iatui``y exeaute tcem), ire fujlimejti` shd``s dj tce aurrejt saejirdn ijl very ippei`djb dj tce kno mirhet. Fnr tcds reisnj, tce stuly nf prnbrimmdjb prnbrimmdjb wdtc Wytcnj Wy tcnj wd`` oe tce hey tn npejdjb mijy lnnrs dj presejt ijl future prnfessdnjs. Oefnre bndjb djtn tce `nbda ijl tce prnbrimmdjb metcnls, dt ds dmpnrtijt dmpnr tijt tn ds ujlerstijl anmput anmputers ers wnrh djpejpirtdau`ir, cnw liti stnrel ijlcnw mijibel. \cds i``nwsijl, us tn etrite tce very meijdjb nf prnbrimmdjb ijl tce `nbda nf cdbc`eve` `ijbuibes. Dj nur exp`ijitdnj, we wd`` tihe fnr brijtel tcit tce reil󰀹󰀪󰀿 er hjnws tce termdjn`nby ijl tce oisda anjaepts anjaerjdjb anmputers, stirtdjb frnm cirlwire (tce set nf pcysdai` anmpnjejts nf tce anmputer) ijl

Anmputer ijl liti reanrldjb

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snftwire (tce set nf prnbrims tcit i``nws dt tn wnrh ijl mijibe i`` nperitdnj nperitdnjs). s).

 

\n ujlerstijl cnw anmputer «tcdjh¸, ijl tcerefnre cnw tcey aij ujlerstijl ijl mijibe tce djstruatdnjs bdvej tn dt oy i prnbrimmdjb `ijbuibe, we must step oiah ijl returj tn tcedr nrdbdjs reai``djb tce Vnj Jeumijj Iracdteature. \cds ds tce referejae iracdteature fnr ijy anmputer, oisel nj wcit wis lesardoel dj 94")   iaaess = Fi`se e`se;   iaaess = \rue

Nje tcdjb dj wcdac, djsteil, Wytcnj ds jnt rdbdl ds tce mijibemejt nf spiaes. Oetweej heywnrls, nperitnrs, vi`ues ijl    J oriahets, is dt wd`` cippej fnr tce fujatdnjs, dt ds pnssdo`e tn    N    C djsert nr jnt tn djsert i spiae. Wytcnj ds io`e tn djterpret    \    T tce twn sardpts djldfferejt`y. \cerefnre, wrdtdjb 1 + 1  ds    W 1+1 1 , prdjt ('Kncj')  ds tce sime equdvi`ejt tn wrdtdjb 1+    B    J    D is prdjt('Kncj') ijl tce sime ds true dj mnre anmp`ex sdt   J uitdnjs. Dj bejeri`, cnwever, dt ds preferio`e tn use spiaes fnr    _    I oetter reiliod`dty, evej tcnubc dt ds jnt mijlitnry.    E    @ Eiac cdbc-`eve` `ijbuibe cis dts nwj set nf prelefdjel       󰀳       󰀿

wnrls, ai``el heywnrls  nr reservel wnrls. Eiac heywnrl cis i speadfda meijdjb ijl aijjnt oe usel fnr ntcer purpnses

 

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Wycnj heywnrls

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jnj`nai`

try

iwidt

e`se

df

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wcd`e

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exaept

dmpnrt

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wdtc

a`iss

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D   j  t   r   n  l   u  a  t    n d   j  t    n

W   y  t   c   n j

(fnr tcds reisnj dt ds ai``el reservel ). ). \io`e 󰀿󰀪󰀹 scnws i`` tce Wytcnj heywnrls; dj tce jext acipters, we wd`` ldsanver tce meijdjb nf mnst nf tcese heywnrls ijl use tcem dj Wytcnj stitemejts. Dj illdtdnj tn heywnrls, dj prnbrimmdjb `ijbuibes tcere ire nperitnrs tcit perfnrm virdnus nperitdnjs nj liti. Fnr eximp`e, tcey aij oe mitcemitdai` nperitnrs `dhe +, -, *, /, nr ntcer types. Dj Acipter 󰀼, we wd`` levnte nur ittejtdnj tn mitcemitdai` nperitnrs ijl ai`au`itdnjs, out we i`reily hjnw tcit Wytcnj Wy tcnj ds io`e tn perfnrm sdmp`e irdtcmetda nperitdnjs wdtc i very djtudtdve syjtix. Fnr eximp`e; ::: 12*6 ??? ::: 6.7 ?