Integer roots: Difference between revisions

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The task is to write a program that computes an approximation to the principal Nth root of X as the largest integer less than or equal to R for which R^N=X. N is a positive integer. X is a non-negative integer. R is a non-negative real number.
The task is to write a program that computes an approximation to the principal Nth root of X as the largest integer less than or equal to R for which R^N=X. N is a positive integer. X is a non-negative integer. R is a non-negative real number.

=={{header|J}}==

<code><.@%:</code> satisfies this task. Left argument is the task's N, right argument is the task's X:

<lang J> 9!:37]0 4096 0 222 NB. set display truncation sufficiently high for our results

2 <.@%: (2*10x^2*2000)
141421356237309504880168872420969807856967187537694807317667973799073247846210703885038753432764157273501384623091229702492483605585073721264412149709993583141322266592750559275579995050115278206057147010955997160597027453459686201472851741864088919860955232923048430871432145083976260362799525140798968725339654633180882964062061525835239505474575028775996172983557522033753185701135437460340849884716038689997069900481503054402779031645424782306849293691862158057846311159666871301301561856898723723528850926486124949771542183342042856860601468247207714358548741556570696776537202264854470158588016207584749226572260020855844665214583988939443709265918003113882464681570826301005948587040031864803421948972782906410450726368813137398552561173220402450912277002269411275736272804957381089675040183698683684507257993647290607629969413804756548237289971803268024744206292691248590521810044598421505911202494413417285314781058036033710773091828693147101711116839165817268894197587165821521282295184884720896946338628915628827659526351405422676532396946175112916024087155101351504553812875600526314680171274026539694702403005174953188629256313851881634780015693691768818523786840522878376293892143006558695686859645951555016447245098368960368873231143894155766510408839142923381132060524336294853170499157717562285497414389991880217624309652065642118273167262575395947172559346372386322614827426222086711558395999265211762526989175409881593486400834570851814722318142040704265090565323333984364578657967965192672923998753666172159825788602633636178274959942194037777536814262177387991945513972312740668983299898953867288228563786977496625199665835257761989393228453447356947949629521688914854925389047558288345260965240965428893945386466257449275563819644103169798330618520193793849400571563337205480685405758679996701213722394758214263065851322174088323829472876173936474678374319600015921888073478576172522118674904249773669292073110963697216089337086611567345853348332952546758516447107578486024636008
3 <.@%: (2*10x^2*2000)
27144176165949065715180894696794892048051077694890969572843654428033085563287658494871973768515010449601702702662017016622108188038292129512829222732037939681464769491319263029308919709511736401200395299672806902057959507281705818417585572775465293620106435558459837272246448049135012971629241921717289904494332635356114519208640365765906522454723182775121756558058020787429240528065700321862315922465987881667832001482693220149093231249941256750252873117504822276540899360702266289427386749058832442643990936924594623694605667125995688788028079451303313515777223983018552490248388121970980055977541748894293734175182220013380497630428176870053423294103392285168797917553010332228664978678396929617114885278335650885524410898341213271192520021355449870508579216359067962061031950345530646092202370608763454397416764433915183368398263533906772869972563479248093751375796381425079119097628053496428734814910307755317031117606073779997125797512066497555354285360734633889394275558674944424368960732987910929093583629174893939036518727793282632439102479840614327136348027409016670160346303867705846755103908964945780837562103026771901489757443287280572195601219016859180373403783498753667545621963282035797597576337893795984255961467481252116653755272803423453851317757500585155874395469445425245653837328715044666730082806623655698726925
5 <.@%: (2*10x^2*2000)
114869835499703500679862694677792758944385088909779750551371111849360320625351305681147311301150847391457571782825280872990018972855371267615994917020637676959403854539263226492033301322122190625130645468320078386350285806907949085127708283982797043969640382563667945344431106523789654147255972578315704103326302050272017414235255993151553782375173884359786924137881735354092890268530342009402133755822717151679559278360263800840317501093689917495888199116488588871447782240220513546797235647742625493141141704109917646404017146978939243424915943739448283626010758721504375406023613552985026793701507511351368254645700768390780390334017990233124030682358360249760098999315658413563173197024899154512108923313999675829872581317721346549115423634135836394159076400636688679216398175376716152621781331348
7 <.@%: (2*10x^2*2000)
29619362959451736245702628695019269518064618216015009169507699742781423769947484925822512257735101524178182602734424986961003971858127002794053824818478879396020132662403256874761276690431037137165264232256601651438511207764019815767975124455844526943932927494896013055497926678521360177960529077012650088983239249505488961115547364229473827474458408002500739618874659540108997885564940730803150961523774615079827002013042942440654069714159530336055547627964891459096727426898214883744931710925020592035759639587602673656267343846153343265577563529779031634608306646526796</lang>



=={{header|Python}}==
=={{header|Python}}==