OF DEFLECTIVE FORCES. l65 



gree, as may be inferred from Laplace's formula (282) tang 



y T= -^, whence cot yr=^r-, y^beingl —-; and ultimately 



m 2y 4 



AM 



cot Tzz — : the value of m in this scholium being equal to 



—of article 282, since here the greatest velocity in the 



pendulum, due to a height equal to half its length, is made 

 the unit of v and of r, instead of a more direct comparison 

 with the value of ^r the force of gravity. ] 



