Arithmetics Pars II. Cap. I. 



tione decies repetiu : vt 1014 eFf filidi^uadrattM exbi- 

 7iano decics pojito. Dicitnr etiam zcnfurdcfolidus. 



Solidus insquilateriis eft vaiius , prouc corpora 

 iniqu.latera vananr. Eft itaquepyramidalis, paral- 

 lelipedufjcolumnarisivrc. 



Eiusradix diciturradix furda numeri folidi inx- 

 quila:eri,& tadix irracionalis, itcmque latusirratio- 

 nalenumcrifolidi ina-quilateri fcu non-cubici. 



Acquehifunc Ipecies numeiorum iiguratorum- 

 fequuncur numeri numcrances hofcc figuiatos/ccun- 

 dum qucm latus vcl figuracusnumcracur ;notatiirq; 

 noc.i dcxcrorliim T^oCnLFelnti mtritertu mmeram late- 

 raesl , /atti^,, iaterar, iatera,dr fic deinceps ; amrurrL. 

 mtatto eU h^c,i l,i l,-, 1,^,1. Sicmtmertis ^nadratos nn. 

 merans tfi, w i ^,i ^,, ^,^cj,<^mfim vn^ ^uadrattt,, 

 duo c]iiadrat,,tres ^ttadrati, ^uatHor auadratt. Ita cubi- 

 ccs valores nmierarmtspa ic,zc,^, c,^c, t.e.vmim a- 

 i^Hm,duos cnbos,tres cnbos (yc. Sic biqttadratHs^fic rolt' 

 dn4,^HadraticitbHS , ornnmoj^ ^mlibet ^<]tttlaterm fit res 

 mtmerabtlts,vt det,art,ts,vt as,vt ltbelia,vt attreJ,auan. 

 dofitc numerantHr dr mtantttr , d,z ^,3 nb.4, aur. Et ,ta 

 ^ttidemfie habet progrejjio figttrata numerorum tntearo- 

 ntm. InfiaHts analog,caeil mmenclatura. Lat,u enim 

 dictttr taterefimum, ^uadrattis ^ttadratefitmttm ^c qua 

 de re v,de pait/o pofl cap.G.reg.vlt. Ottod atttnet adfi. 

 guratos tn^^Htlateros, ilUsnon vttmttr^c protnde tlli no- 

 taspecuhares nonhabent. Solorum ttacjue figHratorttm. 

 Ac,utlateror,im certtfium indtces, ^HtvmttficHiufiatte ftatt- 

 rati depmttonem prompte tndicant^. 

 mc omnia patent e.x progreffioms tabttla.qu^fic habet: 



251 





3. 



c. 



s. 

 o 



5^ -» ^' 

 a; 5i "^ 

 5 5 Si 



Si, 



4- 



55- 



bcj. 

 \6. 



!S3 





yl- 



biy 



8. 



555' 



ff. bs, 



9- 

 ccl, 



cc. 

 bc 



tC}. 

 If^.f I Z.ICZ-1 



10. 



/^. 







C/5 





R E G V L ^. 



- /. In Anthmetick fpecali oportet pr^cognoficere cjUA 

 .. dampnncipia geometrica , aftronoynica Qyc. 



RobmHsFlHdtraa z.pnrt.i.lib.i. facic Arithm«ica: ecne 



Coflica fcu Algcbr,ca,Gcomcrnca,M ilitaris Mufi?^ A(l^ 

 n.ca {(ub qua Aftrologica) Geor.;ntica,p;tCr ^ Me^^^^ 

 x.ahs& locofa. Nos Arithmcticam-partlm^ur flg nc^a^cm & 

 fpeculc,.,Ii,apoteft dici Arithmetic^a abfolutc :^hx Lo "ftt 

 ca. Etfi cnm, Lo£;,a,ca mtcrdum cft fynonymum Ar ti°me 

 car, mtcrdum vcro ad computationem fcxagcnarun, tr nTfe ' 

 tiir : tamcn vnmerfa Arirhmctica fpcci ,1,. ?,,r j ' u 



c.bulo appcllar. potcft.D.cituraX'i:t rraVe^^^^^^ 

 ^u,aadfpec.alemartcm & materiam accommodaturv' ai 

 gcomctnam.aftronom am&c. Itaouc ooorr.^ „ ^ ^^ 



dam .ftarum artium hlc p:a.cogno£ ^ '" ^ '""'f '" '^"^" 



11. 0,nn,s nurnerits e mutua duortim nHmerorum^ 



multtpltcationefitElus , d.c.tur planus j c^ dtto mtmtt 



Mtdiip/icames vocantttr h(eia. 



io,Ilnn?v^ ' ^"'^'? "''^ ""'"""'s Cccundi,n fuas vnitatcs in 



SSu^ cri"o i '^'""'7 • "^"^ P-^H^lo.rammum r - 

 ctanguium.Sic 10 dicitur planus : cuius latcra n,nr . x. 



«multiplicationc ,:Sc 5-"iftunt xo. Et "c '^^^^^^^^^^^ 



^iiircra :• iTarz", 7a "^'"" r'"'-'' 



*«]ualia cuLant. SaTu,; """''y''"^ '^b. inuiccm 

 gula & -qu.latcr.^ill" Ten radl "hi:?'^°^ 'ff 

 J«Wr«,«,mctaphorS phyficl n"IZ'Z \ '"'^ d.cuur i{W,> 

 ex radice nafcitur : ..aWatum cTr ''"^ '°" ^'''°^ 



I|a,uc rad,x&,uadrat^m t^iniat^r^TraSr 

 cftcertiquadrati rad.x : & quadratum Ja cerlV j "' 



dratum.c:^uarecogn,taradice%crtaratlo cu"^rt^:^^^^^ 

 e.usquadratun,ignotum : & quadrato coon to clrt ^ 

 v.a potcft mueftigari eius ladix ignota.Senrpcr "jrcr^ faJr" 

 quarruntur quadrata per radices cognitas quam '^ "' 



quadrata cognita. Cognita cn,m radL . qJadratu,^ , ''" 



pcrfoiammult,pIicat/oncn, rad.cis in i^-T^^^^IZ 



ofSfllZ :nrT''' ''''' inucn.atur,rat,o 'ft^^c! 



"'. ■ "'^ " " *■ l,t quadratum , non ftatim !(r r,ff; . , 

 Hic m confpeftu fit figura A B C D : in quT eft , '"'^"- 

 drata, zj cft numerus"quadrarus , cni s Te | ,L " ! T'" 

 quadr.,tu,^ . pu.a pedcs quadrar, ,'aut deccnS;" '""''' 

 prout latcra pcd.bus aut deccmpcdis mc„furr„:ur :^ ' 



; 





M 



D 



- 



laieius po- 



tcft habctc 



I,... 



Sici4.numeius planus latera habf r ^ «r /: • . • 



1 & it. Ex iftorum enim n„rn!r ^ f^"' ^ *= ^•"'^m 



produc.tur.VndriTpIaiTsin o 7™™"/?^'""'"?''"^'°"= 

 "eniri , necciTum e/ I '"^'3";'"^"'^- ^' '*'"« dcbeant in- 



inuenco lateris plani ^quilateri rK; ^"^'"'"^ "^' 



quod in fc duft,fm r f^.""^^'"- I''' ">m vmcum crt larus, 

 '.«'^^.«. ';i,r "fi*^'^ ""merum quadrarnm. Obfcrua hlc 



quatcnatins vt e, ,.,.fit « ev , , , B ' **™"» eO 



*««.,, e,&„,,ni ',.,,, ii;,^f',;"'.<-?-'ifi.«. 



i-nSsri-rrLr"""' " <■ ^^-tXers: 

 ^.n4''if/;,,tfn,r;,r;re'„ir:n^^ 



;^,i:;'Tt:-rr;fi;%'.tt-«7i"'.k-'"?- 



belJa huicrci iiluftranda: fit ifta. ^'^ J «^ « &c. T*. 



Rad- [ Trigo- ] Tctra- 



