The geometrical key: or The gate of equations unlock'd
Subtitle: A new discovery of the constructin of all equations, howsoever affected, not exceeding the fourth degree; viz. of, linears. qvadratecs, cvbics, biqvdratecs; 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 ...
By: By Tho. Baker
Publisher: Printed by J. Playford for R. Clavel
Published: 1684
Place of publication: London
Language: eng
Number of pages: 217
Subjects: Algebra; Graphic methods; Parabola
Other titles: Clavis geometrica catholica; Gate of equations unlock'd.
Notes: Paging irregular.

Latin and English on opposite pages.

Rare Book copy: "A catalogue of the mathemetical works" and 2 plates (figs. 10-15, 43-53) wanting

Rare Book copy: Armorial binding

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

Wing B517