Astronomia Britannica exhibiting the doctrine of the sphere, and theory of the planets decimally by trigonometry, and by tables : fitted for the meridian of London ...
Newton, John, 1622-1678.
To finde the Reduction.
| As Radius, to cosine of XKL | 6. 90 | 9. 9968431 |
| So tangent of KL | 18. 23666 | 9. 5178453 |
| To tangent of XK | 11. 11322 | 9. 5146884 |
| Reduction | 12344 |
And because the argument of Latitude is more then 180, it must be sub∣tracted from the eccentrick place 240. 39284
And then the eccentrick reduced will be. 240. 26940
