A help to calculation, or, Two tables
Subtitle: the one of decimal numbers and the other of their logarithmes for the ready converting of sexagenary tables into decimal and the contrary ... : as also tables of declination, right and oblique ascensions, ascensional difference, and other tables of the primum mobile for the speedy and exact effecting of a figure ...
Series: Early English books online; Early English books, 1641-1700 -- 1336:25
Publisher: Printed by Ioseph Moxon
Published: 1657
Place of publication: London
Language: eng
Number of pages: 110
Subjects: Mathematics; Tables; Astronomy
Other titles: Primum mobile, or, Tables shewing the delineations, right ascentions, ascentional differences, oblique ascentions of the sun and other planets.; Two tables.
Notes: "Primum mobile, or, Tables shewing the delinations, right ascentions, ascentional differences, oblique ascentions of the sun and other planets" has special t.p., dated 1656.

Wing N1060.