A help to calculation, or, Two tables - 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

Förlag	År	Ort	Om boken	ISBN
Printed by Ioseph Moxon	1657	England, London	10, 112 sidor.