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 ...
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| Format: | Microform Book |
| Language: | English |
| Series: | Early English books, 1641-1700 ;
1336:25. |
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| Item Description: | "Primum mobile, or, Tables shewing the delinations, right ascentions, ascentional differences, oblique ascentions of the sun and other planets" has special title page, dated 1656. Reproduction of original in the British Library. Microform. |
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| Physical Description: | 10, 110 pages, 2 unnumbered pages |