1 The 8 5
eAbriefe Treatiſe of that part of Algebra
chat concerneth Coſsicall, orDenominate Numbers.
e in common Arithmetike al Ab·5 ſtract numbers take their oꝛiginalJ krom the Vnite, lo in thele kind olconcrete oꝛ Denominate numbers,we take dur beginning from a Ra„dix oz Roote, not impꝛoperly ſotearmed, ſithens out ok the lame,ö 2 gs from the very baſe and rote ared nite bꝛaunches ok theſe Coſſical numbers. Andas in common numbers we pꝛoceede krom the Vnite byAddition, to create all kinde of Numbers, ſo in this Arteok Pumbers Coſsicall, we pꝛoceede from the Rwle beMlultiplication, to create all Squares, Cubes, Zenzizen-il, and Surd Solides, with all other that in this Scienceare bed, the which by Example map beſt be expla-ned. 8 a
„ 21 v ppRoo. Sg. Cu. Sg. Sfb. SC. BF. SS Gg. CC. Sf. CHS. SSC.2 4 8 16 32 64. 128 256 512.1024 2048 4096
Any Number Abſtract maꝝ be a Roote, and accoꝛdingto the value and quantitie thereok, all the other CoſſickeNumbers in value e quantitie alter. oꝛ Example ſake,J do here ſuppoſe the Roote 2, the which multiplied in itſelfe, maketh 4 his Square, 108 his Character duer his