Sum 



DETERMINATION OF WAVE FORM 



Calculation of B 6 and B 7 



0.300 



(y< - 2/8 ) sin 30 = ( - 4.55} 0.5000 = - 2.275 



Sum = -1.975 

 (yi - T/IO) sin 60 = ( - 4.1 ) 0.8660 = ' - 8.551 



Difference = ( + 1. 

 (yi - 2/n) sin 15 = ( - 0.20) 0.2588 = - 0.062 

 (y& - yi ) sin 75 = ( - S.I ) 0.9659 = - 2.994 



Sum - 3.046 



0/3 - ?/ ) sin 45 = ( - 6.4 ) 0.7071 = - 3.818 



(1.676)! 

 (0.772)* 



Difference ( + 0.772)* 

 (1.676), 

 (0.772)* 



2.848 = 6 6 

 0.391 



Difference 0.804 = 65 7 

 7 = 0.134 



559 



Checks, see page 655 



B t 1 . 786 

 B 6 0.391 

 B 7 0.134 



1.723 



0.170 



Sums 2.311 2.012 

 Net sum 0.299 



Ai = 82.633 

 An " 0.022 



Sum = (32. 655) i 



Difference = (S2.611)t 



At = 0.204 



At - 0.055 



Sum = (0.259)3 



Difference = (0.149)i 



Sum. 



32.914 



= +0-057 



Sum (-0.057). 



Difference = (-O.lSll)t 



Difference (32.961} 



(32.961) (1.414) - 46. 69 

 From curve yi + yt =46- so 



(32.611), 

 (-O.Sll)t 



Diff. [32. 822] 1.732 

 From curve yt +!/ = 66.85 



Sum 32.400 

 (0.149)t 



Diff. [32.251} 

 From curve yt<=SS.t6 



