Home | 006096776

Author

Baker, Thomas, 1624 or 1625-1690.

Title

The geometrical key, or, The gate of equations unlock'd: a new discovery of the construction of all equations, howsoever affected, not exceeding the fourth degree, viz. of linears, quadratics, cubics, biquadratics; And the finding of all their roots, as well false, as true; without the use of mesolabe, trisection of angles; without reduction, depression, or any other previous preparation of equations, by a circle, and any (and that but one only) parabole. And this, by one only general rule; than which a more simple, more perfect. more general, more easie to be understood, or more fit for practice, cannot be devised or wished for. Fortified with demonstrations, illustrated with figures, to each equation; and exemplified with numeral equations, (according to all the varieties of cases,) adapted to each figure. For the use of young mathematicians, a work hitherto desired. By Tho. Baker.

Varying form of title

Gate of equations unlock'd

Varying form of title

Gate of equations unlocked

Varying form of title

Half-title: Geometry of all equations, cubic, and biquadratic, by a circle, and any one only parabole

Varying form of title

Half-title: Clavis Geometrica Catholica: the geometrical key, or the gate of equations unlock'd

Varying form of title

Caption title: Clavis Geometrica Catholica: sive janua æquationum reserata

Varying form of title

Caption title: Clavis Geometrica Catholica: sive janua aequationum reserata

Imprint

London : printed by J. Playford, for R. Clavel, at the Peacock in S. Paul's Church-yard, M.DC.LXXX.IV. [1684]

Physical description

[36], 7, 167, 167, [3] p., [10] folded leaves of plates : : ill. 4⁰.

Note

Added t.p. in Latin: Clavis Geometrica Catholica: sive janua æquationum reserata: Methodusomnes æquationes quomodolibet affectas, quartum gradum non Exedentes; ...

Note

Signatures: A⁴ a-d⁴ (-d3-4) a⁴ B-2F⁴ (-F3-4) [chi]¹⁰.

Note

English and Latin on opposite pages, which are numbered (167, 167) in duplicate.

Note

Enclosed in braces, one line per word: "linears, quadratics, cubics, biquadratics;".

Note

Advertisements: [3] p. at end.

Note

"A catalogue of the mathematical works of the learned Mr. Thomas Baker": 7 p. following preface.

Note

Signatures: A⁴ a-c⁴ d² [superscript chi]a² B-2E⁴ 2F⁴(-2F4).

Citation/references note

Wing (2nd ed.), B517

Citation/references note

Arber's Term cat., II 73

Reproduction note

Microfilm. Ann Arbor, Mich. University Microfilms, 1966. 1 microfilm reel ; 35 mm. (Early English books, 1641-1700; 198:24).

Subject

Baker, Thomas,

Subject

1641-1700 local

Subject

Algebra Graphic methods Early works to 1800.

Subject

Parabola Early works to 1800.

Subject

Technical formularies. rbgenr

Added entry--place

Great Britain England London.

001006096776

003Uk-ES

00520181217164234.9

008850726s1684 enk|||| 00| ||eng c

035##$a(CU-RivES)R2991

1001#$aBaker, Thomas,$d1624 or 1625-1690.

24514$aThe geometrical key, or, The gate of equations unlock'd:$ba new discovery of the construction of all equations, howsoever affected, not exceeding the fourth degree, viz. of linears, quadratics, cubics, biquadratics; And the finding of all their roots, as well false, as true; without the use of mesolabe, trisection of angles; without reduction, depression, or any other previous preparation of equations, by a circle, and any (and that but one only) parabole. And this, by one only general rule; than which a more simple, more perfect. more general, more easie to be understood, or more fit for practice, cannot be devised or wished for. Fortified with demonstrations, illustrated with figures, to each equation; and exemplified with numeral equations, (according to all the varieties of cases,) adapted to each figure. For the use of young mathematicians, a work hitherto desired. By Tho. Baker.

2463#$aGate of equations unlock'd

2463#$aGate of equations unlocked

2461#$iHalf-title:$aGeometry of all equations, cubic, and biquadratic, by a circle, and any one only parabole

2461#$iHalf-title:$aClavis Geometrica Catholica: the geometrical key, or the gate of equations unlock'd

24616$aClavis Geometrica Catholica: sive janua æquationum reserata

24616$aClavis Geometrica Catholica: sive janua aequationum reserata

260##$aLondon :$bprinted by J. Playford, for R. Clavel, at the Peacock in S. Paul's Church-yard,$cM.DC.LXXX.IV. [1684]

300##$a[36], 7, 167, 167, [3] p., [10] folded leaves of plates : :$bill.$c4⁰.

500##$aAdded t.p. in Latin: Clavis Geometrica Catholica: sive janua æquationum reserata: Methodusomnes æquationes quomodolibet affectas, quartum gradum non Exedentes; ...

500##$aSignatures: A⁴ a-d⁴ (-d3-4) a⁴ B-2F⁴ (-F3-4) [chi]¹⁰.

500##$aEnglish and Latin on opposite pages, which are numbered (167, 167) in duplicate.

500##$aEnclosed in braces, one line per word: "linears, quadratics, cubics, biquadratics;".

500##$aAdvertisements: [3] p. at end.

500##$a"A catalogue of the mathematical works of the learned Mr. Thomas Baker": 7 p. following preface.

500##$aSignatures: A⁴ a-c⁴ d² [superscript chi]a² B-2E⁴ 2F⁴(-2F4).

5104#$aWing (2nd ed.),$cB517

5104#$aArber's Term cat.,$cII 73

533##$aMicrofilm.$bAnn Arbor, Mich.$cUniversity Microfilms,$d1966. 1 microfilm reel ; 35 mm.$f(Early English books, 1641-1700; 198:24).

60010$aBaker, Thomas,$d1624 or 1625-1690$xBibliography$vEarly works to 1800.

648#7$a1641-1700$2local

650#0$aAlgebra$xGraphic methods$vEarly works to 1800.

650#0$aParabola$vEarly works to 1800.

655#7$aTechnical formularies.$2rbgenr

752##$aGreat Britain$bEngland$dLondon.