618 
Proceedings of the Boycd Society 
+ 2222 22222 22222 22222 x cd 
+ 674 60317 46031 74603 x^8 
+ 218 69488 53615 52028 x 
+ 73 86029 60825 18305 xai2 
+ 25 65805 74040 89150 x 
+ 9 09896 49190 70739 x 
+ 3 27793 02274 75478 x 
+ 1 19564 55712 17762 xa^o 
•16666 66666 66666 66667 x 
+ 555 55555 55555 55556 X 
+ 35 27336 86067 01940x^6 
+ 2 64550 26455 02646 x^8 
+ 21377 79915 55769 x 
+ 1803 67023 40053 x 
+ 156 61391 32277 x«i4 
+ 13 88413 04937 xai<5 
+ 1 25043 59176 xai8 
+ 11402 57560 x«2o 
In order to make these formulae useful in ordinary calculations, 
we must multiply all the coefficients by the modulus of denary 
logarithms. Thus — 
Den. log sec a = 
•21714 72409 51625 91383 x^2 
+ 3619 12868 25270 98564 x 
+ 965 09884 86738 92950 x 
+ 292 97643 62045 74646 x ^8 
+ 94 97798 19329 86290 xai» 
+ 32 07711 90203 78068 x 
+ 11 14315 27469 52792 x 
+ 3 95163 02553 83690 x aio 
+ 1 42358 70098 56471 x«i8 
+ 51926 22738 91936 x«20 
