Ball, Robert S. (Robert Stawell), Sir, 1840-1913 · Cambridge, University press · leaf 330
§§ 105-106] ON THE TRANSIT OF A PLANET ACROSS THE SUN 315 signs are the coordinates of M. If x, y, z are the coordinates of any point F on the cone with its vertex at L then the coordinates of any … Fig. 78. other point on the line FL will Ke obtained by assigning certain values to / and g in the expressions fx+gx,Rj{R-n) fy + gy,R/(R-r,) fz + gz,R/(R-r,) f+9 • .f+9 ' f+9 When these coordinates are substituted in the equation of either of the spheres they will give a quadratic in fjg…
Spherical astronomy
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