OF AETS AND SCIENCES. 



21T 



TABLE FOR M AND m {continued). 



cos 1 = sin m cos (5 — 31) 



sin jf cos \p' = sin m sin (5 — M) 



sin X sin ip' = cos m. 



If « exceeds 180°, cos m changes sign, and the supplements of m and 

 i!/are given in the table with argument a — 180°. 



